Pelican 1640 Transport Case Square and deep, the Pelican 1640 Case keeps larger electronics and equipment safe, even in extreme conditions. Outside, thereâÃÂÃÂÃÂÃÂs an ultra-high-impact structural copolymer shell. That means the 1640 case is airtight, watertight, dustproof, crushproof, chemical- and corrosion-resistant and unbreakable. Inside, optional padded divider set and foam set can be configured to hold your most vital valuables. Why choose the 1640? Optional five-piece foam set that consists of 1 "egg crate" foam upper section, 3 Pick N'' Pluck foam sections, and one 1.0" blank bottom foam section Optional 34-piece divider set consists of a top tray with 3 (21"), 16 (5.0") flexible dividers and lower tray with 2 (21"), 3 (4.5"), 7 (7.5") flexible padded dividers and 1 top lid convoluted foam section Watertight, crushproof and dust proof construction Neoprene o-ring and ABS latches create a perfect seal Automatic purge valve for quick equalization after changes in atmospheric pressure Comfortable, convenient fold down handles and retractable extension handle 4 strong polyurethane wheels with stainless steel bearings Padlock protectors provide added strength and extra security against cutting and theft Unconditional Lifetime Guarantee