The Patent Pending rubber caster wheels. Suitable for office chairs, glides quietly, no floor mats required.
Two easy steps to in stall:
Pull out caster to be replaced, gripping with a glove or towel
Install the new caster into stem hole & push in as far as possible
It will seat itself in place when you do.
Wheel Diameter 2″ (50mm).
Stem Diameter 7/16″ (11mm).