This cart caster is made of plastic material, with the stable structure design, this cart caster is stable and has a . Can be used for the small cart, trolley, helping the cart to slide smoothly and fast. This will be a good accessory for the trolley. These wheels are designed with stability and convenience in mind. Features -Color:Transparent -Material:Plastic -Size:16.00X16.00X3.00cm/6.29X6.29X1.18in - The wheel is suitable for use with various push cart, including shopping cart and trolleys. - Made with good materials, the wheel is durable and . The easy installation and removal of the wheel make it very user-friendly. - With the small size and fine workmanship, it can bring you good usage experience. - The wheel can be used as a replacement or backup for shopping cart wheel, push cart wheel, or wheelchair wheels. - The simple installation design makes it a convenient option for those who frequently use a push cart. Package list: 4 x Casters