It is made from for a long time and use. his non-swivel wheels can be easily pasted on the storage box or small items such as trash cans, box, etc, making it easier moving for you. Easy to install, NO tools required, sliding quietly. Features - Color: White. - Material: Stainless Steel + Plastic. - Size: 3.40X3.40X1.00cm/ 1.34X1.34X0.39inch. - Made of plastic and stainless steel material for a long time and use. - Sticking it to the bottom of the storage box and trash can, making it easier to move. - These 360-degree rotation ball-type paste pulleys will move smoothly in all directions. - These mini caster are suitable for bookshelves, shoes box, toy bins, trash bin, storage box, etc. - Also, it can be a good housewarming present choice for your friends. They will like it. Package list: 16 x sticky wheels