Hardware Plugs work great for preventing scuffs on the floor or as protection glides on chair tips, bench feet, table legs, bar stool foot sliders, chair leg protectors, patio furniture inserts, and much more. They are also designed to hold up against impact, and harsh weather conditions.SpecificationColor: BlackMaterial: PESize: 38x16 mm/1.5x0.63 Inch(LxH)Head Thickness: 5 mm/0.2 InchFit for Inside Diameter: 35-37 mm/1.38-1.46 InchPacking List: 10 Pcs x Plastic End CapsAdvantageRound Hole Plug is waterproof, strong, and abrasion-resistant, suitable for preventing wear and tear on wooden floors and reducing noise. They have carpeted furniture gliders for easy movement.InstructionEasily insert into your round tube end or pipe with a simple thumb push or a gentle tap with a rubber mallet or hammer.