[Applicable Range] Each furniture caster cups' size,you can get it from the picture. Our rubber stoppers almost fit to all wheels used in our daily life, it is perfect to protect your floor and prevent sliding.<br> [Features] The chair stoppers have polishing surface to contact the ground to ensure no scratches or damage of the floor (hardwood floor or tile floor). convexity design will help furniture stoppers bear heavier load and make furniture in place firmly.<br> [Easy To Use] When you want to keep your furniture stationary, you just need to put this wheel stopper under the wheels of the furniture, and it will not move.<br> [The Wide Range of Applications]The Funiture Stopper Suitable for all furniture with wheels such as beds, sofas, various tables and chairs, etc.<br> Easy to Clean: It is easy to vacuum, but it is also easy to clean. All you need to do is wipe it with a wet towel.<br> Colour:Black<br> Material:rubber<br> Size:Length 8.2cm, width 5.6cm<br> Package Contents:<br> 4 * Bed Stopper Caster Cups<br> Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.