The Slim Type Half Coupler with Baby Receiver is a lightweight and low profile professional coupler, constructed from high tensile aluminum extrusion. It has been developed for installations where load capacities of up to 110lbs (100kg) are required. The KUPO professional couplers combine strength and durability with a high degree of safety. The Slim Type Half Coupler with Baby Receiver is designed to fit tubes with a diameter of 48mm-51mm for lighting fixing accessories. It has a silver polished finish.