3250 Series Waterproof Case Cleverly made drybox designed to withstand submersions up to 100 feet Waterproof, crushproof and airtight Provides protection for GPS units, cellular phones, gaming devices, sunglasses, MP3 players, small digital cameras and more Exterior dim: 8.81-InchL x 5.18-InchW x 3.08-InchD Interior dim: 7.59-InchL x 3.65-InchW x 2.23-InchD