Global Truss Smar Coupler 5076-1B black, practical and above all, time-saving coupler for 48-51 mm tubes, by raise the fixture, to the crossbar, the coupler closes by itself and the load must not be kept so that the screw can be tightened effortless., max load: 50 kg, for Ř 48-51 mm, Weight: 0.6 kg, Colour: black
