diff --git a/app/Models/StickerStructureDetail.php b/app/Models/StickerStructureDetail.php
index 75ad896..a9be47b 100644
--- a/app/Models/StickerStructureDetail.php
+++ b/app/Models/StickerStructureDetail.php
@@ -3,6 +3,7 @@
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\SoftDeletes;
 
 class StickerStructureDetail extends Model
@@ -11,6 +12,8 @@ class StickerStructureDetail extends Model
     use SoftDeletes;
 
     protected $fillable = [
+        'plant_id',
+        'item_characteristic_id',
         'sticker_id',
         'sticker_width',
         'sticker_height',
@@ -23,4 +26,15 @@ class StickerStructureDetail extends Model
         'created_by',
         'updated_by'
     ];
+
+    public function plant(): BelongsTo
+    {
+        return $this->belongsTo(Plant::class);
+    }
+
+    public function itemCharacteristic(): BelongsTo
+    {
+        return $this->belongsTo(ItemCharacteristic::class, 'item_characteristic_id');
+    }
+
 }
diff --git a/database/migrations/2025_12_22_190230_added_foreign_key_plant_id_item_chracteritic_id_to_sticker_structure_details.php b/database/migrations/2025_12_22_190230_added_foreign_key_plant_id_item_chracteritic_id_to_sticker_structure_details.php
new file mode 100644
index 0000000..276bbd6
--- /dev/null
+++ b/database/migrations/2025_12_22_190230_added_foreign_key_plant_id_item_chracteritic_id_to_sticker_structure_details.php
@@ -0,0 +1,42 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        $sql1 = <<<'SQL'
+            ALTER TABLE sticker_structure_details
+            ADD COLUMN plant_id BIGINT NOT NULL,
+            ADD CONSTRAINT sticker_structure_details_plant_id_fkey
+            FOREIGN KEY (plant_id) REFERENCES plants(id);
+        SQL;
+
+        DB::statement($sql1);
+
+        $sql2 = <<<'SQL'
+        ALTER TABLE sticker_structure_details
+        ADD COLUMN item_characteristic_id BIGINT NULL,
+        ADD CONSTRAINT sticker_structure_details_item_characteristic_id_fkey
+        FOREIGN KEY (item_characteristic_id) REFERENCES item_characteristics(id);
+        SQL;
+
+        DB::statement($sql2);
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        // Schema::table('sticker_structure_details', function (Blueprint $table) {
+        //     //
+        // });
+    }
+};