Aluminum tube - Diameter: 50 mm - Length: 50 cm ISO DIN 4113 and TÜV certified Made of 50mm aluminium alloy (EN AW 6082 T6, diameter 50 mm, thickness 2 mm) . The conical connectors and pins allow you to set it up quickly, and guarantee a very safe, stable and resistant installation. Disassembling it is also very quick. Supplied with 1 coupler LINK FOR FULL INFORMATION: UNO-50