Light Duty Caster suppliers 75mm swivel type office chair caster wheel, stem size M11*22mm, ball bearing, color can be customized, load 50kg, popular selling 3inch office chair caster general features 1. Wheel part: 75mm PU transparent office caster. 75mm wheel diameter with 23.5mm wheel width. Transparent wheel, flexible rotating, durable and stable 2. Housing part: white zinc plated...