This is a Cart Caster, made of premium and safe iron material, with the stable triangle structure design, this cart caster is stable and has a good performance. Can be used for the shopping cart, helping the cart to slide smoothly and fast. This will be a good accessory for the shopping cart. Features -Color:Black-Material:Iron-Size: 22.00X22.00X5.00cm /8.65X8.65X1.97in -This Cart Caster is made of sturdy iron material, which is more durable, and is not easy to shake when pulled the cart.-With the stable triangle structure design, the trolley wheel is more stable when transporting goods.-With an premium material and fine details,general purpose, suitable for different shopping carts.-This trolley wheel can be installed or removed with ease and convenience, also easy to store.-The Cart Caster is a good helper to help you transport goods, allowing you to travel easily.Packing list: 1 x Pair of Cart Wheels