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');
+    }
+
 }