PROTECT YOUR FLOORS:Office chair wheels for wood floors,unlike traditional plastic casters, these high-quality soft polyurethane casters can any type of floor includes hardwood and carpet without any scratches.SMOOTH & QUIET: Fast and quiet office chair wheel-rolling on any surface without any squeak. With these office chair casters, you're able to roll effortless and change the chair's direction of movement easily.CASTERS YOU CAN KEEP : Innovative roller skates technology for office chair casters. Heavy-duty chair wheels solid steel stem and frame, and a strong plastic rim that withstands loads up to 650 lbs. Risk-free with free return for any reason.COOL - MODERN - ATTRACTIVE: These gorgeous Office Casters Wheels with clear, see-through wheels will turn your favorite home office chair into attractive, modern furniture. Our replacement casters wheels are the absolute best upgrade among many office chair accessories.EASY INSTALLATION: Our premium replacement office chair casters feature a new stem design, that makes replacing old casters a breeze simply and quickly.size:Wheel width: 56mmInstallation height: 59mmInstallation rod: 11mmx22mmMaterial:PU polyurethane, nyloncolour:WhitePackage Contents:5 * Office Chair Wheels ReplacementOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.