This injection molded 49-key keyboard case is a part of the i-Series of waterproof cases. i-Series injection molded waterproof cases are constructed of ultra high-strength polypropylene copolymer resin and feature a gasketed, waterproof and airtight, submersible design (IP67) that is resistant to corrosion and impact damage. Its continuous molded-in hinge, patented "trigger release" latch system, TSA accepted and approved locks, comfortable, snap-down rubber over-molded cushion grip handle, secure stacking, and automatic ambient pressure equalization valve (MIL-STD-648C) all contribute to its military grade design. The 3i-3614-KBD 49-key keyboard features a combination foam/cleat interior, which holds the instrument securely during transport. Adhesive backed foam in the lid also secures the keyboard.