Good Customer Service: The inner diameter of chair leg caps is 3/4 inch (19mm). They only fit over tubular legs of 3/4 inch outer diameter. Be sure to measure the bottom size of your chair legs precisely, choose the correct size furniture feet caps before purchase. Please contact us directly if you have any questions about the products you received, we provide 24*7 hours service and solve the problem to your satisfaction Chair Protection: Prevent slipping, protect floors from scratches, reduce noise caused by furniture movement, and minimize chair leg corrosion Premium Quality: Our chair tips are made of a little elastic, heavy-duty rubber that is soft, durable, and resistant to wear and tear. The thickened bottom extends their lifespan Easy Installation: Our rubber leg caps are effortless to install. Simply match the size of your chair legs with our product, and they will fit snugly Versatile Usage: These chair tips are suitable for indoor and outdoor use. They are great for round chair legs, tubular poles, and can serve as excellent replacements for folding chair/table leg caps and ironing board feet caps 16pcs 3/4 inch chair leg tips caps, made of rubber, safe and soft.