AllPoints Foodservice Parts & Supplies 1262166 casters feature a durable 4" outer diameter design with a 3/4" x 2" swivel stem for easy maneuverability. Each set of four casters supports a robust load capacity of 500 lbs, making them ideal for heavy-duty applications. The black rubber wheels provide excellent traction and floor protection, while the stainless steel hub ensures long-lasting performance. Each caster is equipped with a bumper and retaining ring for added stability and safety, suitable for use with Super Erecta® shelving systems.