chair caster, chair swivel chair caster wheel nylon,dia 50mm, with 11*22 metal pin,chair caster, BIFMA standard or NON BIFMA

chair caster, swivel chair caster,caster wheel1)chair caster, nylon ,dia 50mm,

2)chair caster, nylon ,dia 50mm, , BIFMA standard.

3)With brake or without Modern style & exquisite quality.

chair caster