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. & QUIET: Fast and quiet office chair wheel-rolling on any surface without any squeak. With these office chair casters, you're 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: 56mm Installation height: 59mm Installation rod: 11mmx22mm Material:PU polyurethane, nylon colour:White Package Contents: 5 * Office Chair Wheels Replacement Only 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.