Designed for flat/stake beds extra deep and tall. Reinforced top shelf to carry the load. Heavy duty gas shocks on flip up door. Has a bottom compartment with drop down door. Made of .063 thick aluminum diamond tread. Secure stainless folding locking T handles. Weather resistant rain gutter design with a full rubber seal. Brute HD Class High Capacity Top Sider Tool Box; Polished Aluminum; L 72 in. x W 16 in. x H 18 in.; .100 Thick Diamond Tread Aluminum Construction High Cap HD Top Sdr 16in x 72in w/flip up Door Overall Dims: 72x16x18 In.; Approx. Cu Ft: 14.7 In.