GIVI Motorcycle Rear Box Monokey Aluminum TREKKER OUTBACK Series External Dimensions: H323 x W555 x D454mm Capacity: 58L Maximum Load: 10kg The case body is a robust structure made of 1.5mm thick aluminum plate and technopolymer parts for reinforcement at the corners. Installation is the same as conventional Monokey cases and has high adaptability. Purchased in January of this year. Selling because I bought a different top case. Price will be reduced every time the number of likes increases. Thank you. Adding to the net.