The OtterBox 3250 Series is a cleverly-made drybox designed to withstand submersions up to 100 feet! Waterproof, crushproof and airtight, these cases provide protection for your GPS, PDA, gaming unit, passport, cell phone, glasses, sunglasses, jewelry and so much more! Internal Dimensions: 2.23 in. Height x 7.59 in. Width x 3.65 in. Depth External Dimensions: 3.08 in. Height x 8.81 in. Width x 5.18 in. Depth