Thermo-Pro Rubber

Expansion stem casters are designed to mount casters into open tubing fixtures. Turning of hex nut beneath the lower raceway on the caster expands the  rubber adapter inside of the round or square tubing for a tight fit. There are various stem sizes available which individually have a range of  tubing sizes the stem will fit into.

Thermoplastic Rubber Wheels are a soft tread wheel that is manufactured out of a chemically bonded rubber on a polyolefin core. They provide a quiet and smooth roll because of their shock absorbing and cushioned ride features.