YOUR FLOORS:Office chair wheels for wood floors,unlike plastic casters, these high-quality soft polyurethane casters can on 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 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 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 Office Casters Wheels with clear, see-through wheels will turn your favorite home office chair into attractive, modern furniture. replacement casters wheels are the absolute best upgrade among many office chair accessories. EASY INSTALLATION: premium replacement office chair casters feature a new design, that makes replacing 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 are not included. Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is +/- 1-3cm.