Product Name : Shopping Cart Wheel;Diameter : Inner Hole: 0.7cm / 0.3" Outter: 11.3cm / 4.4" ;Thickness : 1.6cm / 0.6" Material : Rubber, Plastic;Color : Red, Black Weight : 296g Good replacement for the broken wheels of your shopping cart, made of durable rubber and plastic material, it is your ideal choice. Package Content : 2 x Shopping Cart Wheel Note:Light 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.