20-Sets of heavy duty furniture leveler inserts for almost any furniture application. Simply drill a 5/16-3/8 inch hole, approximately 5/8 inch deep, in the bottom of your furniture leg, insert and hammer in the threaded insert and screw in the adjustable, threaded foot to desired height. Black, flexible, padded foot and 5/16 inch threaded bolt are much heavier duty than the other sets I?ve seen available. Also, these are not hard, brittle plastic that easily cracks and breaks like the competitors. See pictures for more details Comes in a set of 20, exactly as pictured Free shipping to lower contiguous United States Thanks for looking