4 Inch Thermoplastic Rubber Wheel 1-1/2 Inch Expanding Stem Caster SCC, 4PK
Also, the innovative expanding stem, that can easily adapt to the inside diameter of an opening, allowing for a secure fit in round or square tubes. Mounting options include top plate, grip neck, grip ring and standard and metric threaded stem sizes. This durable caster provides easy maneuverability for a smooth and quiet ride, and features dual ball bearing heat treated raceway construction, with a zinc plated finish that provides durability under any condition. Wheels are available in non-marking polyurethane, thermoplastic rubber and soft rubber, excellent for carpet, concrete and tile floor surfaces.