Universal GPS weatherproof protective case - $25 + shipping.
Fits most GPS units up to 4.3" diagonal (5" GPS will not fit)
Case comes with standard RAM 1" ball fitting. Transparent touch-through lens lets you view and control the touch screen. A water resistant zipper on the case is easy to use and keeps the water out. A grommted cut-out on the bottom provides cable access. Three foam spacers help fit the case with varying size devices.
External dimensions: 15cm across x 11cm wide x 4.5cm deep
Internal dimensions: 13.5cm across x 8.5 wide x 2cm deep