Product Description: Advantages: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information 2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.3.Suitable for use DIY in luggage, luggage, trolley cases, etc.4.Matte surface, quiet and wear-resistant, preferably plastic, steel shaft. It is a very high-quality replacement for damaged luggage wheels. Specifications:Color: BlackMaterial: Plastic + MetalSize:Wheel Diameter:5.2cm/2.05inDimension:8.3x10.4x5.2cm/3.27x4.09x2.05inch(L x W x Dia)Moodel:W187Weight: 476 gAttentions:1.This is DIY parts.2.The holes between suitcases and wheels maybe little different because of different production batch,if not match,you need to adjust the holes by digging the holes on the suitcase by yourself.3.Once position the hole,you can install it with screw. Whatever the difference is,you can adjust the hole on the suitcase,and then install with screws.4.Please check the picture and description. And there is 3mm error for manual measurement. Package include:4 x Luggage Wheel (Left & Right) 16 x Screws