The EUROLITE TPC-55 is a swivel double coupler designed for 45–50 mm truss tubes. It is made of aluminium and has a silver finish. The coupler uses an M10 mounting screw and supports a maximum working load limit of 800 kg with a fourfold safety factor. The BGV C1 maximum load is 400 kg with an eightfold safety factor. Its dimensions are 26 cm in length, 5 cm in width and 11.5 cm in depth, with a weight of 1.36 kg.