Overview Heavy Duty Dual Swivel Clamp For 50mm Tubing with a max load of 1100 pounds. American DJ HEAVY DUTY PRO SWIVEL CLAMP;CLM0573 $64.00 Regular Price$43.00Sale PriceQuantity*Add to CartSpecifications Heavy Duty Dual Swivel Clamp For 50mm Tubing Compatible with F31-F32-F33-F34-F44P Truss Minimum Tubing Diameter 48mm Maximum Tubing Diameter 51mm Max Load Capacity 500 kgs. - 1100 lbs. TUV Approved Unit Weight 2.25 lbs.