These lightweight wheels are made out of plastic material. Simple design for convenient use, and the garbage cans have a secure grip and don't fall accidentally. It is quietly enough, so it is perfect for noise- environments like , hospitals, nursing homes, offices, and school buildings. Features -Color:As shown -Material:Plastic -Size:55.00X2.00X2.00cm/21.61X0.79X0.79in(bearing) -Size:18.00X18.00X3.50cm/7.07X7.07X1.38in(wheel) -The garbage can wheels are made of reliable and safe material, which would not scratch your floor. -The design of the wheels are reasonable, so that the waste bins can move steady and no noise. -Provides easy mobility and maneuverability when collecting and transporting heavy trashes. -The wheels can be installed on the bottom of the trash cans, making them move more labor-saving and convenient. -The fine workmanship of these wheels ensure the practicality and durability of trash can wheels. Package list: 4 x wheel 2 x bearing