Materials used: 2.5mm (0.098") black powder coated stainless steel. Lightweight and can carry up to 20l (5.28 gallons) of water suspended from the roof rack Consists of: Lower shower arm, upper shower arm and a nuts and bolts kit Product Dimensions: L 530mm (20.86") x W 120mm (4.72") x H 90mm (3.54") Weight: 2kg (4.4lbs)