Features: 1.Material: Made of high quality ABS material, it slides smoothly, is load bearing, durable and shock absorbing. 2.No Noise: The carton wheels will move smoothly in all directions, you don& 39;t have to worry about making noise or leaving scratches and marks on the floor, so you can use it with no worry. 3.Easy to Install: You simply peel off the film on the back and press it firmly onto a smooth surface and it is recommended to wait 24 hours for better results when using it, so the smooth wheels makes heavy loads less of a worry. 4.Wide Range of Applications: These wheels are not only suitable for shoe boxes, bins, small containers for easy mobility, but also a great DIY accessory for children& 39;s toys, art craft work and more. 5.After-sales Service: If you have any problem, please contact us immediately, we will help you solve it as soon as possible. Specifications: Size:4.4*2.2*1.6cm Material:ABS