6 Pcs X Chair Replacement Wheels Swivel Casters Set for Office/school

Features: The chair casters are made of rubber, wear-resistant, mute, anti-slip; Double wheels, flexible, roll very quiet and very smooth.Application: Our chair casters are suitable for office, school, home etc., also for hard floor, wooden floor and other types of floors.for computer chair, swivel chair, office chair, furniture, computer desk, swivel chair, executive chair, etc.Disassembly / Installation: The chair replacement wheels are easy to disassemble, Pull off the old swivel chairs. aim at the interface and push the hard floor rollers in.Color: Black & whiteMaterial: Nylon + PUTotal length: 80mmLength between two rolls: 51mmWheel diameter: 50mmBearing diameter: 11mmAxis length: 22mmBearing weight: Each load bearing 30-40kgIncludes:12 * Chair castersOnly the above package content, other products are not included.Note: Light shooting 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.