D.H.S. 5/8" Dia. Nylon Slider Glides for Chairs, Stools, Tables - Protects Your Floors as Furniture Slides Like Magic over Tile, Carpet, Hardwood - Black - Box of 25 WORKS ON VIRTUALLY ALL SURFACES - Furniture "floats" across tile, hardwood, carpet, even concrete! SELF-LUBRICATING NYLON - Makes it easy for kids to move chairs, while sparing your floors (and ears) at the same time! BLACK COLOR - Great choice for very dark wood or painted pieces ECO FRIENDLY PACKAGING - Comes in a handy, re-closable box for easy storage of any extras - 25 pieces DUGAN'S GUARANTEE - Buy em, try em, use em, abuse em for 30 days. If not happy for ANY reason, return for a full refund. NO QUESTIONS ASKED!