1. Included：3-inch Caster Wheels * 5
2. Durability： they are durable and safe for all floors, especially wooden vinyl and tile flooring. The Precision Ball Bearings built into the construction of the wheel and frame will ensure -smooth and noiseless chair movement.
3. Versatility：UNIVERSAL STEM SIZE – 7/16″ (11mm) x 7/8″ (22.2mm)- fits all office work chairs sold in the USA with 11mm stems RELIABLE CONSTRUCTION – frame, stem and wheel axle all made of high-grade steel. The casters are made of durable hard plastic with a shell of top-quality transparent polyurethane.
5. EASY INSTALLATION： just pull off the old casters from the chair base, with no need for any tools – and push the stem of your new wheels into the socket, until the stem is firmly anchored.
Universal Wheels: Designed to fit all standard office and computer chairs, furniture casters, medical casters, and electrical casters. One-click easy replacement of old casters and ready to roll!（Not suitable for IKEA furniture）
KEEP YOUR FLOORS IMMACULATE: NO MATS needed, these casters safely glide on your expensive hardwood flooring, tile, vinyl, carpet & any type of floor with ease without making a scratch or noise (Not recommended for thick/tall carpets)
GET OFFICE WHEELS WITH STYLE: Upgrade your home or office chairs and transform your décor by adding a touch of cool luxury.
EXTREMELY DURABLE: Made of superior grade steel & able to safely support up to 650lbs. Polyurethane, rollerblade style swivel wheels are designed to be super gentle with your precious flooring
BUILT TO LAST OR YOUR MONEY BACK: THE BEST CHAIR CASTERS WHEELS you’ll ever own. You’ll feel they’re the most favorite, quietest, smoothest rolling desk chair wheels you’ve ever used – or simply return them, and we’ll courteously refund 。