Fits 99% of Roller Chair -- Our 5 pcs office chair wheel replacement with premium replacement caster wheels fits 99% of standard stem five wheels for office chair.( office chairs, computer chair, gaming chair, executive chairs, work chairs, rolling stools) and most famous chair Movable Chair Wheels -- With a dust-proof top cover and precision bearings as well as a shock-absorbing polyurethane tire, the office chair wheels is wheel casters and chair rollers casters glide smoothly and easily on any without making any noise. The reinforced vertical swivel axle of office chair casters makes sliding a joy. Easy to Install and -- Office chair casters replacement without any tools, just pull out the old office chair casters and push the new desk chair wheels in to the socket of the roller chair successfully.At the same time, our transparent polyurethane chair casters are more to acid, grease, water and certain chemical substances, so that the chair casters for hardwood floors have a longer service life. Support Up to 550 LBS -- Chair rollers casters is a strongest heavy duty caster wheels.Chair wheel constructed with high-grade bearing, the support brackets boast of our replacement wheels has long-lasting durability and support up to 550 lbs.So that this office chair casters makes your wheel chairs more comfortable and stronger. Material: Metal colour: Black Package Contents: 5 x office chair wheels Only the above package content, other products are not included. Note: Light reflection 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.