1-1/2" (40mm) Source II Carpet Wheel Caster with Mounting Plate

1-1/2" (40mm) Souce II Twin Wheel Caster with Top Plate - Part# 8TW4001BK (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.): 40 Tread Material: Nylon Wheel Diameter: 40mm Rig Color / Material: Flat Black -Nylon Body Mounting Height: 2-1/4" Swivel Radius: 1-11/16" Fastner: 1-1/2" x 1-1/2" Top Plate with 1" x 1" Bolt Pattern Weight (Lbs): 0.15