GorillaFelt Swivel Glide Felt Sliders feature plastic ball and swivel socket felt glides designed for slanted or angled furniture legs that are ¾" to 1-1/2 in. in diameter at base (can also be used on straight chair legs). Each GorillaFelt foot features a durable ¼" thick premium wool blended felt base that lasts longer, provides super smooth and quiet chair sliding and protects all hard floor surfaces from furniture damage. Ideal floor protectors for dining chairs, bar stools, kitchen chairs, tables and wooden furniture legs; levels chairs and furniture to be flat on floor. Prevents furniture from damaging floor surfaces and safely protects all hard surfaces including hardwood, tile, vinyl, laminate, LVT, marble and more. Includes 16 screw on felt swivel feet that are 1 in. round and add ¾ inch height to furniture and 16 x 1-in. screws for secure attachment under chair foot. Color: Black.