Bestcare - 3" Dual Front Caster For 400/500/600LB Patient Lifts and Sit-To-Stands3" Dual Front Caster Durable and Reliable Mobility for BestLift and BestStand Lifts Engineered for Heavy Duty Lifts: Designed for 400, 500, and 600 lb capacity BestLift and BestStand patient lifts, ensuring compatibility and dependable performance. Dual Caster Design: Offers enhanced stability and smooth maneuverability for patient transfers, improving both caregiver control and patient safety. Fits 12mm Bolt Systems: Specifically built for lifts