Material: Made of high-quality plastic, durable and wear-resistant. Waterproof and compressive wear proof. Uses:Provides long lasting protection， great for preventing scuffs on wood floor or as protection glides on chair tips, bench feet, table legs, bar stool foot sliderschair leg protectors, patio furniture inserts, and much more. The 1-1/4"x1-1/4"Inch threaded inner plug can be used as a durable solution for home or outdoor projects, including replacement of fence/door railing covers, trailer frame ends, rod tube rod caps, wrought iron steel decorative plugs or any square opening. The caps for square tubing also give a finished sleek look for many small projects: Suitable for trailer frame ends, bike rack fittings, wrought iron steel, fence post toppers, luggage racks iend inserts, step ladder caps, gate rail post covers, Fitness Equipment ends,steel kayak rack end caps and any square tubing end caps Easy to install Not easy to deform, firmer, not easy to fall off, easy to install