Cosmos&reg; Pack of 8 Silicone Chair Leg Caps Feet Pads Furniture Table Covers Wood Floor Protectors, Square 30 to 35mm The silicone caps keep the chair feet securely. Anti-slip felt pads allow your chair to glide smoothly along the wood floor. There will be no scratches and noise when moving your furniture. Square opening: 3cm to 3.5cm; Bottom: 3.5cm x 3.5cm; Height: 3.2cm