SKB Equipment Case, 22 X 22 X 12, Empty with Wheels Waterproof and dust tight design (MIL-C-4150J / IP67) LLDPE Polyethylene impact resistant Resistant to UV, solvents, corrosion, fungus (MIL-STD-810F) Pressure relief / breather valves Resistant to impact damage (MIL-STD-810F)