The industry standard swivel coupler, consists of a pair of high tensile extruded aluminium clamps back to back and designed to swivel 360 degrees, that are suitable for 48mm to 51mm (1.89” – 2.01”) diameter tubes. It has a WLL of 750Kg and uses a pair of 50mm (1.97?) wide clamps. Ideal for trussing as it will not damage the cords. Available in polished silver or powder coated black. TÜV APPROVED WLL: 750kg Tube Diameter: 48mm – 51mm (1.89” – 2.01”) Clamp Width: 50mm (1.97")