Bring to your life: When you attach these -adhesive wheels to objects, you can move those objects without much effort, these beads will not scratch the floor easily, giving you a good experience. Widely used in : Mini casters are suitable for many occasions, such as kitchen, living room, bedroom, study, etc. You can on boxes, plates, trash cans and other items. Long service life: The pulley is made of high material, which is and strong, and will not break or deform easily; the product can support up to 20kg load capacity, it is recommended that you use no more than 8kg, you can use it for a long time Easy to install: You just need to off the back film and press hard on the surface, it is recommended to wait 24 hours, it will be better to use, so that the pulley will not worry about heavy objects anymore. DIY : You can also apply the wheel swivel casters to your DIY projects like gift boxes and some rectangular items; at your , you can do these activities and also the of your hands. color:Black Material:plastic size:45 x 28mm Package Contents: 24 x Adhesive Wheels Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.