Explorer Cases are the most exciting development in the unbreakable, waterproof case market for some years, they are the first of their kind to be manufactured in Europe & therefore offer an extremely cost effective alternative to all the competition in this marketplace while presenting an exceptionally well designed case in a vaste range. The cases meet the highest levels of case manufacture & comply with military & commercial standards of testing & will protect the most delicate or expensive equipment in the most severe & hazardous environments Removable lid Counterbalance supports Body of the case made from thick plastic resin Neoprene seal Pressure valve quickly adjusts internal pressure in case of sudden changes in height or temperature Ergonomic handle & strong pressure locks that can be padlocked Interstackable (even if different-size models) Internal fitting for metal supports to set up panels or masks for attachment of tools & equipment rubber handle telescopic handle & large wheels with bearings meets carry-on IATA standards sizes to be taken on aircraft as cabin luggage