iSeries 4214-5 Waterproof Utility Case with layered foam Available in well over 40 configurations, the 3I Series of waterproof cases are the perfect solution for storing and transporting your delicate electronics, A/V equipment, computers, cables, microphones, mixers and all other things that need thorough protection from dust, water and impact damage. Features layers of cubed foam for customer customization and the padlock holes include stainless steel protector clips for added strength. SKB 3I Series Injection Molded Mil-Standard Waterproof Cases are molded of ultra high-strength polypropylene copolymer resin, featuring a gasketed, water and dust tight, submersible design (MIL-C-4150J) that is resistant to corrosion and impact damage. Features a molded-in hinge, patented "trigger release" latch system, comfortable, snap-down rubber over-molded cushion grip handle, automatic ambient pressure equalization valve (MIL-STD-648C), resistance to UV, solvents, corrosion, fungus and impact damage (MIL-STD-810F). - In-line skate style wheels for easy transport - Trigger release latches can be retrofitted with TSA accepted key locking latches - Padlock holes include stainless steel padlock protector clips - Layers of foam for customization - Cushion grip handles on three sides - Waterproof and dust tight design (MIL-C-4150J) - Molded-in hinge for added protection - Trigger release latch system - Snap-down rubber over-molded cushion grip handle - Ambient pressure equalization valve (MIL-STD-648C) - Resistant to UV, solvents, corrosion, fungus (MIL-STD-810F) - Resistant to impact damage (MIL-STD-810F)