Sturdycasters Replacement Caster Wheels:
These replacement caster wheels are the universal fit for all standard office chairs that simply and effortlessly change old casters.
Polyurethane on Polyolefin wheel offers excellent features of silent rolling, floor protection, and non-slip.
The standard grip ring stem is very easy to install.
The wheel has a double ball bearing structure, which is 608 bearing type that reduces the noise and friction under high speed rolling.
The black electrophoresis treatment yoke is waterproof and resistant to rust and corrosion.
Set of 5 casters packed in one box.