More information· Shockproof · Crushproof · Waterproof - IP67 certified - Water-resistant to 10m · Dust and sandproof · Proof of corrosive products · Pressure change-proof · Temperature tolerance: -33 ° C / + 90 ° C · High density plastic resin material (enriched polypropylene) · Stackable, even with models of different sizes · Available in various colors · Designed for military applications · Various places to put padlocks for maximum security · Valve to adjust the internal pressure in the event of sudden changes in height or temperature · Neoprene gaskets for total tightness · Large and secure snap closures · Brackets to keep the case upright while the lid is open · Corrosion-proof reinforced metal hinges · Robust and ergonomic handle · Name and address label · Orange and army green colors available upon request · Interior available with several layers of micro-perforated foam for easy attachment ptation of any object or void.