2" (50mm) Source II Carpet Wheel Caster with 3/8" Threaded Stem & Brake

2" (50mm) Souce II Twin Wheel Caster with 3/8" Threaded Stem & Brake - Part#  8TW5037BK-B (Best for Carpet) This furniture casters is from our economy line. They feature a nylon body & nylon wheels. The nylon wheels works best on carpet, but will work on all floor surfaces. For floors that need to be protected, such as hardwood or marble, please select a furniture caster marked with "floor protective" in either the title or description. Matching adapters and inserts for this mounting stem can be found here - Adapters & Inserts Specifications: Load Capacity (lbs.): 75 Tread Material: Nylon Wheel Diameter: 50mm Rig Color / Material: Flat Black -Nylon Body Mounting Height: 2-3/8" Swivel Radius: 2-7/16" Fastner: 3/8" x 3/4" Long Threaded Stem Weight (Lbs): 0.18