Heavy-Duty balancing system. Securely locks at any angle. Two 6,600lb. capacity jacks to adjust working height. Four 16' mounting arms. Three piece telescoping center bar adjusts to 25' Six 3' Phenolic resin swivel casters. Capacity 4,000 Lbs https://www.5startools.com/tools-1/auto-hydraulic-car-rotisserie-automotive-car- twirler-4000-lb-capacity-by-5-star Tel: (773) 225-5979