Expandable Chair Leg Caps: Felt chair leg caps are easy to use as they stretch to fit the legs. Round base diameter: 15 - 20mm (0.6" - 0.8"), Square base diameter: 9 - 14mm (0.38" - 0.5"). Please measure the size of your chair legs before purchasing. FLOOR PROTECTION & NOISE REDUCTION These chair leg floor protectors are designed to protect your floors from chair scratches. They can be easily attached to kitchen chairs, dining room chairs, dining room chairs and metal chair legs to protect your wood, hardwood, tile and carpet floors from unsightly scratches. The felt bottom of the chair leg caps helps the chair slide smoothly without making terrible noise when you move it. UPGRADE THE QUALITY With 360° full wrap felt bottom and increased felt thickness designed to fit different angles of inclined chair legs. Our chair leg protectors have high stretchability and elasticity. which allow for a longer service life. Our TPE chair leg floor protectors are made of waterproof pressed felt and