The waterproof, moisture-proof, tough, yet lightweight Underwater Kinetics Ultrabox 206 offers premium protection for small personal items. The waterproof case is fitted with an automatic pressure equalisation valve. Underwater Kinetics Ultrabox 207 features Waterproof, moisture-proof and dustproof High Impact ABS, LEXAN, polyurethane rubber & stainless steel construction The automatic pressure equalisation valve ensures easy opening after altitude or temperature change Nylon mesh lid pouch for storing accessories Removable shock-absorbent rubber liner protects sensitive equipment Stackable, o-ring sealed, lanyard included Specifications Internal Dimensions: 17.0 x 7.1 x 5.6cm External Dims: 20.1 x 9.9 x 6.1cm Lid Depth: 1.5cm Base Depth: 4.0cm Weight: 0.2kg Material: ABS Waterproof: IP67 Operating Temperature: -29° to 71°C