Designed to fit wrought iron furniture legs with 1-1/2" inside diameter cups, please see size information image and measure your furniture feet prior to purchase (Will not fit 1-1/4" inside diameter cups). *For easy installation line up caps straight on cup and use a rubber hammer or mallet to tap in. For even easier installation heat the caps before installing. High durability and long-lasting marine grade berber wrought iron furniture caps specially formulated to allow metal furniture to slide quietly and effortlessly on all surfaces. Perfect floor protectors for outdoor furniture on wood / composite decks, stamped / smooth concrete patios and porches, tiled floors and more (For concrete pavers & rough concrete surfaces we recommend Slipstick Gorilla Outdoor Nylon Glide products). Easy to Install, these replacement feet for metal chairs and tables and designed exclusively for 1-1/2” inside Diameter cups on wrought iron furniture legs. Please measure to confirm before purchasing. These wrought iron patio furniture glides greatly reduce friction between furniture and the floor providing ultra-smooth and quiet gliding all while protecting your floor. Includes 1.5” replacement glide caps that are designed to withstand the harshest outdoor elements and are covered by Slipstick’s 1 Year free replacement warranty.