1.5 Inch/2 Inch Swivel Casters Nylon 360 Degree Threaded Caster Wheels White

1.5 Inch - 44 lbs Capacity - M8x15mm Thread2 Inch - 66 lbs Capacity - M10x15mm ThreadDescription:* Get smooth, quiet rolling and full swivel action, all while protecting your floors.* Perfect replacement for home or office chairs that have hard, noisy, rough plastic wheels.

eBay