Features: 4 pcs replacement left & right luggage suitcase universal wheels. Suitable for bags, luggage, trolley case , and need you have a strong ability in DIY. Dual roller bearing wheels, rotating flexible, load-bearing. Easy to install , for a long time use. Tips: The radian of the wheel shell of the wheel is different, or the hole position is different, please do not buy it Specifications: Feature: Dual Roller Wheels Please check the detail size before you purchase it. Please check as much as possible to make sure the item is what you need. Material: plastic colour: Black Package Contents: 4 x Dual Roller Wheels Universal Swivel Casters With screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.