If you��re the type that changes their cargo needs as often as you change your socks, then you need the freedom to mount or remove your cargo boxes in seconds. The Quick Release Cargo Mount works with popular roof cargo boxes and includes 4 lockable latches for added peace of mind. Consists of:4 x Quick Release Brackets2 x Aluminum Cross MembersInstallation HardwareFitting InstructionsMaterials used:Black powder coated 3CR12 stainless steelAluminumProduct Dimensions:704mm (27.7'') L x 604mm (23.8'') W x 97mm (3.8'') HWeight:6.2Kg (13.7lbs)