Harmony Cell Phone/GPS Dry Flex Case Device remains fully functional from within the case. Urethane coated nylon fabric welded to clear urethane internal panels provide light, compact, and reliable protection Dual-density foam protects your device from impact and floats in water Molded clip allows attachment to boat or PFD Will fit devices up to 7'' x 2  x 1 (17.5cm x 6.25cm x 2.5cm)