The 312 UltraBox is a water tight all weather mini-briefcase. With an interior that is only slightly larger than a standard letter it is deep enough to protect important documents, electronic tablets, phone, camera, etc. Accessory pluck-out foam pad layers can be added to adapt the case for sensitive electronics. High impact ABS case protects contents from crushing and is field repairable or easily modified for special projects Dual purpose latches stabilize the lid and seal if dropped and automatically equalize interior pressure when opened Twin 5/32 inch padlock loops Non-slip rubber feet Snap-on nylon strap handle with contoured rubber grip Optional snap-on handle with contoured rubber grip Specifications: Internal Dims: 11.5 x 8.9 x 3.1 in   /  29.2 x 22.6 x 7.9 cm External Dims: 12.2 x 10.4 x 3.3 in  /  31.0 x 26.4 x 8.4 cm Lid Depth: 1.0 in  /  2.5 cm Base Depth: 2.1 in  /  5.3 cm Weight: 1.9 lbs  /  0.9 kg Waterproof: IP67 Operating Temperature: -29° to 71° C  /  -20° to 160° F