diff --git a/.gitea/workflows/release.yml b/.gitea/workflows/release.yml
index 587109b..1de4a4c 100644
--- a/.gitea/workflows/release.yml
+++ b/.gitea/workflows/release.yml
@@ -9,7 +9,7 @@ on:
   push:
     branches: [ main ]
     paths:
-      - 'master-file.php'
+      - 'siti-wash-instructions.php'
       - 'includes/**'
       - 'assets/**'
       - 'languages/**'
@@ -18,8 +18,8 @@ jobs:
   release:
     uses: roberto/ci-workflows/.gitea/workflows/wp-plugin-release.yml@c6393ed47258d6f040ceeed3994b17b7faa3ef23
     with:
-      main_file: master-file.php
-      slug: siti-plugin-template
+      main_file: siti-wash-instructions.php
+      slug: siti-wash-instructions
       release_body: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.release_notes || '' }}
     secrets:
       RELEASE_TOKEN: ${{ secrets.RELEASE_TOKEN }}
\ No newline at end of file
diff --git a/includes/SitiWashInstructions.php b/includes/SitiWashInstructions.php
new file mode 100644
index 0000000..6beac18
--- /dev/null
+++ b/includes/SitiWashInstructions.php
@@ -0,0 +1,337 @@
+<?php
+final class SitiWashInstructions
+{
+    private const TAXONOMY = 'product_brand';
+
+    public static function init(): void
+    {
+        add_action('init', [__CLASS__, 'register_brand_hooks']);
+
+        add_filter('woocommerce_product_data_tabs', [__CLASS__, 'add_product_tab']);
+        add_action('woocommerce_product_data_panels', [__CLASS__, 'render_product_panel']);
+        add_action('woocommerce_process_product_meta', [__CLASS__, 'save_product_meta'], 20);
+        add_action('admin_head', [__CLASS__, 'admin_tab_icon']);
+    }
+
+    private static function fields(): array
+    {
+        return [
+            'temperature' => [
+                'label' => __('Temperatuur', 'siti-wash-instructions'),
+                'term_key' => 'lb_wash_temp',
+                'product_key' => '_lb_wash_temp',
+                'icon' => '🌡️',
+                'options' => [
+                    '' => __('Geen advies', 'siti-wash-instructions'),
+                    'cold' => __('Koud wassen (max 20°C)', 'siti-wash-instructions'),
+                    '30h' => __('30°C handwas', 'siti-wash-instructions'),
+                    '30' => __('30°C fijnwas', 'siti-wash-instructions'),
+                    '40' => __('40°C normaal', 'siti-wash-instructions'),
+                    '60' => __('60°C intensief', 'siti-wash-instructions'),
+                    'hand' => __('Alleen handwas', 'siti-wash-instructions'),
+                ],
+            ],
+            'dryer' => [
+                'label' => __('Droger', 'siti-wash-instructions'),
+                'term_key' => 'lb_wash_dryer',
+                'product_key' => '_lb_wash_dryer',
+                'icon' => '🌀',
+                'options' => [
+                    '' => __('Geen advies', 'siti-wash-instructions'),
+                    'no' => __('Niet in de droger', 'siti-wash-instructions'),
+                    'low' => __('Alleen lage stand', 'siti-wash-instructions'),
+                    'yes' => __('Droger toegestaan', 'siti-wash-instructions'),
+                ],
+            ],
+            'iron' => [
+                'label' => __('Strijken', 'siti-wash-instructions'),
+                'term_key' => 'lb_wash_iron',
+                'product_key' => '_lb_wash_iron',
+                'icon' => '🧺',
+                'options' => [
+                    '' => __('Geen advies', 'siti-wash-instructions'),
+                    'no' => __('Niet strijken', 'siti-wash-instructions'),
+                    'low' => __('Lage temperatuur', 'siti-wash-instructions'),
+                    'med' => __('Gemiddelde temperatuur', 'siti-wash-instructions'),
+                    'high' => __('Hoge temperatuur', 'siti-wash-instructions'),
+                ],
+            ],
+            'bleach' => [
+                'label' => __('Bleken', 'siti-wash-instructions'),
+                'term_key' => 'lb_wash_bleach',
+                'product_key' => '_lb_wash_bleach',
+                'icon' => '🫧',
+                'options' => [
+                    '' => __('Geen advies', 'siti-wash-instructions'),
+                    'no' => __('Niet bleken', 'siti-wash-instructions'),
+                    'yes' => __('Alleen zuurstofbleekmiddel', 'siti-wash-instructions'),
+                ],
+            ],
+        ];
+    }
+
+    public static function register_brand_hooks(): void
+    {
+        $tax = self::TAXONOMY;
+        add_action("{$tax}_add_form_fields", [__CLASS__, 'render_brand_add_form']);
+        add_action("{$tax}_edit_form_fields", [__CLASS__, 'render_brand_edit_form'], 10, 2);
+        add_action("created_{$tax}", [__CLASS__, 'save_brand_fields']);
+        add_action("edited_{$tax}", [__CLASS__, 'save_brand_fields']);
+    }
+
+    public static function render_brand_add_form($taxonomy): void
+    {
+        foreach (self::fields() as $field) {
+            self::render_brand_field('', $field);
+        }
+    }
+
+    public static function render_brand_edit_form($term, $taxonomy): void
+    {
+        foreach (self::fields() as $field) {
+            $value = (string) get_term_meta($term->term_id, $field['term_key'], true);
+            ?>
+            <tr class="form-field">
+                <th scope="row"><label><?php echo esc_html($field['label']); ?></label></th>
+                <td>
+                    <?php self::render_brand_select($field, $value); ?>
+                </td>
+            </tr>
+            <?php
+        }
+    }
+
+    private static function render_brand_field(string $value, array $field): void
+    {
+        ?>
+        <div class="form-field">
+            <label><?php echo esc_html($field['label']); ?></label>
+            <?php self::render_brand_select($field, $value); ?>
+        </div>
+        <?php
+    }
+
+    private static function render_brand_select(array $field, string $value): void
+    {
+        ?>
+        <select name="<?php echo esc_attr($field['term_key']); ?>" style="width:100%;">
+            <option value=""><?php esc_html_e('Geen advies', 'siti-wash-instructions'); ?></option>
+            <?php foreach ($field['options'] as $key => $label): ?>
+                <?php if ($key === '')
+                    continue; ?>
+                <option value="<?php echo esc_attr($key); ?>" <?php selected($value, $key); ?>>
+                    <?php echo esc_html($label); ?>
+                </option>
+            <?php endforeach; ?>
+        </select>
+        <?php
+    }
+
+    public static function save_brand_fields(int $term_id): void
+    {
+        foreach (self::fields() as $field) {
+            $key = $field['term_key'];
+            if (!isset($_POST[$key])) {
+                continue;
+            }
+            $value = sanitize_text_field(wp_unslash($_POST[$key]));
+            update_term_meta($term_id, $key, $value);
+        }
+    }
+
+    public static function add_product_tab(array $tabs): array
+    {
+        $tabs['lb_wash_advice'] = [
+            'label' => __('Wasadvies', 'siti-wash-instructions'),
+            'target' => 'lb_wash_advice_panel',
+            'class' => ['lb-wash-advice-tab', 'show_if_simple', 'show_if_variable', 'show_if_grouped', 'show_if_external'],
+            'priority' => 66,
+        ];
+
+        return $tabs;
+    }
+
+    public static function render_product_panel(): void
+    {
+        global $post;
+        ?>
+        <div id="lb_wash_advice_panel" class="panel woocommerce_options_panel">
+            <div class="options_group">
+                <?php
+                foreach (self::fields() as $field_key => $field) {
+                    $product_value = get_post_meta($post->ID, $field['product_key'], true);
+                    $options = ['inherit' => __('Volg merk (standaard)', 'siti-wash-instructions')] + $field['options'];
+                    woocommerce_wp_select([
+                        'id' => $field['product_key'],
+                        'label' => $field['label'],
+                        'value' => $product_value !== '' ? $product_value : 'inherit',
+                        'options' => $options,
+                        'desc_tip' => false,
+                        'description' => __('Kies hier om het merkadvies te overschrijven.', 'siti-wash-instructions'),
+                    ]);
+                }
+                ?>
+            </div>
+        </div>
+        <?php
+    }
+
+    public static function admin_tab_icon(): void
+    {
+        ?>
+        <style>
+            #woocommerce-product-data ul.wc-tabs li.lb-wash-advice-tab a:before {
+                content: "\f19a";
+                font-family: Dashicons;
+            }
+        </style>
+        <?php
+    }
+
+    public static function save_product_meta(int $post_id): void
+    {
+        foreach (self::fields() as $field) {
+            $key = $field['product_key'];
+            if (!isset($_POST[$key])) {
+                continue;
+            }
+            $value = sanitize_text_field(wp_unslash($_POST[$key]));
+            update_post_meta($post_id, $key, $value);
+        }
+    }
+
+    private static function get_product_advice(int $product_id): array
+    {
+        $result = [];
+        foreach (self::fields() as $field_key => $field) {
+            $value = get_post_meta($product_id, $field['product_key'], true);
+            if ($value === '' || $value === 'inherit') {
+                $value = self::get_brand_value($product_id, $field['term_key']);
+            }
+
+            if ($value && isset($field['options'][$value])) {
+                $result[$field_key] = [
+                    'label' => $field['label'],
+                    'text' => $field['options'][$value],
+                    'icon' => $field['icon'],
+                ];
+            }
+        }
+
+        return $result;
+    }
+
+    private static function get_brand_value(int $product_id, string $meta_key): string
+    {
+        $terms = get_the_terms($product_id, self::TAXONOMY);
+        if (empty($terms) || is_wp_error($terms)) {
+            return '';
+        }
+
+        foreach ($terms as $term) {
+            $value = get_term_meta($term->term_id, $meta_key, true);
+            if ($value !== '') {
+                return (string) $value;
+            }
+        }
+
+        return '';
+    }
+
+    public static function render_frontend_block(bool $echo = true, $product = null): string
+    {
+        if ($product === null) {
+            global $product;
+        }
+
+        if (!$product instanceof WC_Product) {
+            return '';
+        }
+
+        $output = self::build_wash_markup($product);
+        if ($echo && $output !== '') {
+            echo $output;
+        }
+
+        return $output;
+    }
+
+    private static function build_wash_markup(WC_Product $product): string
+    {
+        $data = self::get_product_advice($product->get_id());
+        if (empty($data)) {
+            return '';
+        }
+        ob_start();
+
+        static $printed_styles = false;
+        if (!$printed_styles) {
+            $printed_styles = true;
+            ?>
+            <style>
+                .lb-wash-card {
+                    background: linear-gradient(135deg, #f0fbff, #fdf9ff);
+                    border: 1px solid rgba(0, 140, 186, 0.2);
+                    border-radius: 10px;
+                    padding: 16px 18px;
+                    margin: 16px 0;
+                }
+
+                .lb-wash-card__title {
+                    font-size: 13px;
+                    text-transform: uppercase;
+                    letter-spacing: .5px;
+                    color: #008cba;
+                    font-weight: 600;
+                    margin-bottom: 8px;
+                    display: flex;
+                    align-items: center;
+                    gap: 6px;
+                }
+
+                .lb-wash-card__list {
+                    list-style: none;
+                    padding: 0;
+                    margin: 0;
+                }
+
+                .lb-wash-card__list li {
+                    display: flex;
+                    align-items: flex-start;
+                    gap: 10px;
+                    padding: 6px 0;
+                    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
+                    font-size: 15px;
+                    color: #333;
+                }
+
+                .lb-wash-card__list li:last-child {
+                    border-bottom: none;
+                }
+
+                .lb-wash-card__icon {
+                    font-size: 18px;
+                }
+            </style>
+            <?php
+        }
+
+        ?>
+        <div class="lb-wash-card">
+            <div class="lb-wash-card__title">🧼 <?php esc_html_e('Wasadvies', 'siti-wash-instructions'); ?></div>
+            <ul class="lb-wash-card__list">
+                <?php foreach ($data as $item): ?>
+                    <li>
+                        <span class="lb-wash-card__icon" aria-hidden="true"><?php echo esc_html($item['icon']); ?></span>
+                        <span>
+                            <strong><?php echo esc_html($item['label']); ?>:</strong>
+                            <?php echo esc_html($item['text']); ?>
+                        </span>
+                    </li>
+                <?php endforeach; ?>
+            </ul>
+        </div>
+        <?php
+        return ob_get_clean();
+    }
+}
\ No newline at end of file
diff --git a/master-file.php b/master-file.php
deleted file mode 100644
index ab2c274..0000000
--- a/master-file.php
+++ /dev/null
@@ -1,49 +0,0 @@
-<?php
-/**
- * Plugin Name:       Siti Plugin Template
- *
- * @package           PluginPackage
- * @author            Roberto Guagliardo | SitiWeb
- * @copyright         2019 Roberto Guagliardo | SitiWeb
- * @license           GPL-2.0-or-later
- *
- * @wordpress-plugin
- * Plugin Name:       Siti Plugin Template
- * Plugin URI:        https://plugins.robert.ooo/plugin/
- * Description:       Description of the plugin.
- * Version:           1.0.0
- * Requires at least: 5.2
- * Requires PHP:      7.2
- * Author:            Roberto Guagliardo | SitiWeb
- * Author URI:        https://sitiweb.nl/
- * Text Domain:       plugin-slug
- * License:           GPL v2 or later
- * License URI:       http://www.gnu.org/licenses/gpl-2.0.txt
- * Update URI:        https://example.com/my-plugin/
- * Requires Plugins:  my-plugin, yet-another-plugin
- */
-if ( ! defined( 'ABSPATH' ) ) {
-    exit;
-}
-
-if ( ! defined( 'PLUGIN_SLUG_VERSION' ) ) {
-	$plugin_data = get_file_data(
-		__FILE__,
-		[
-			'Version' => 'Version',
-		],
-		false
-	);
-
-	$plugin_version = isset( $plugin_data['Version'] ) && $plugin_data['Version'] ? $plugin_data['Version'] : '1.0.0';
-	define( 'PLUGIN_SLUG_VERSION', $plugin_version );
-}
-
-if( ! class_exists( 'SitiWebUpdater2' ) ){
-	include_once( plugin_dir_path( __FILE__ ) . 'includes/SitiWebUpdater2.php' );
-}
-
-$updater = new SitiWebUpdater2( __FILE__ );
-$updater->set_owner( 'roberto' );
-$updater->set_repository( 'siti-plugin-template' );
-$updater->initialize();
\ No newline at end of file
diff --git a/siti-wash-instructions.php b/siti-wash-instructions.php
new file mode 100644
index 0000000..c01a02a
--- /dev/null
+++ b/siti-wash-instructions.php
@@ -0,0 +1,53 @@
+<?php
+/**
+ * Plugin Name:       Siti Wash Instructions
+ *
+ * @package           PluginPackage
+ * @author            Roberto Guagliardo | SitiWeb
+ * @copyright         2019 Roberto Guagliardo | SitiWeb
+ * @license           GPL-2.0-or-later
+ *
+ * @wordpress-plugin
+ * Plugin Name:       Siti Wash Instructions
+ * Plugin URI:        https://plugins.robert.ooo/plugin/
+ * Description:       Voeg wasinstructies toe aan producten en merken in WooCommerce.
+ * Version:           1.0.0
+ * Requires at least: 5.2
+ * Requires PHP:      7.2
+ * Author:            Roberto Guagliardo | SitiWeb
+ * Author URI:        https://sitiweb.nl/
+ * Text Domain:       siti-wash-instructions
+ * License:           GPL v2 or later
+ * License URI:       http://www.gnu.org/licenses/gpl-2.0.txt
+ * Update URI:        https://example.com/my-plugin/
+ * Requires Plugins:  my-plugin, yet-another-plugin
+ */
+if (!defined('ABSPATH')) {
+	exit;
+}
+
+if (!defined('SITI_WASH_INSTRUCTIONS_VERSION')) {
+	$plugin_data = get_file_data(
+		__FILE__,
+		[
+			'Version' => 'Version',
+		],
+		false
+	);
+
+	$plugin_version = isset($plugin_data['Version']) && $plugin_data['Version'] ? $plugin_data['Version'] : '1.0.0';
+	define('SITI_WASH_INSTRUCTIONS_VERSION', $plugin_version);
+}
+
+if (!class_exists('SitiWebUpdater2')) {
+	include_once(plugin_dir_path(__FILE__) . 'includes/SitiWebUpdater2.php');
+}
+
+$updater = new SitiWebUpdater2(__FILE__);
+$updater->set_owner('roberto');
+$updater->set_repository('siti-wash-instructions');
+$updater->initialize();
+
+include_once plugin_dir_path(__FILE__) . 'includes/SitiWashInstructions.php';
+
+SitiWashInstructions::init();