Size: Universal S Material: Our silicone Furniture Sliders covers don't use gel and nails, we use special technology to combine felt and silicone firmly.Package included 40 pieces. Applicable size:Suitable for chair foot with perimeter of 3 3/16" to 4 9/16" (80-115.9mm). Round diameter 15/16" to 1 5/16" (23-33mm). Square side length 12/16 to 1 2/16" (20-28.9mm). Install:The felt furniture pads is easy to put on,no tools needed, no chair foot cleaning needed,nd not easy to fall off. Use: The chair leg protectors cushion cover protect shardwood floorsand tiles from scratches, reduces noise and prevent bumps. Felt pads on the bottom reduce resistance, allowing furniture to move easily and quietly without lifting. Shape: It can be applied to various shapes of round and square chair feet angled chair legs, such as restaurant chairs, terrace chairs, kitchen chairs, metal bistro chairs.etc.After disassembling the product, you can continue use our chair legs cover at your new place; If it is dirty, it can be washed directly with water.