Navitech Cycle / Bike / Bicycle Waterproof holder mount and case for GPS satnav models up to 4.3 " models including the Tomtom XL 340.S LIVE, XL 340.S LIVE, Tomtom GO 730 and go 630, go 720, go 920 & go 930, XL 350, XL 340S, XL 335S, XL 330S, XL 325S, XL 325, XL 325 SE, Tomtom go 930, Tomtom go 920, Waterproof Bicycle mount holder case for all sat nav models up to size of 4.3 inchs Tomtom, Garmin, Navman, Magellan, Navigon This high quality bicycle mount holder is an excellent way to mount your Sat Nav whilst on your bike, it offers a wider range of movement to allow you to mount your GPS in the best postion possible. The mount comes complete with a water tight bag to allow you to keep your TomTom clean and free of water damage! Ideal for people who have one Sat Nav and use it on bikes as well as their car This Mount Holder will fit all 3.5 inch sat nav models as well Most touch screen capable sat navs are capable of use through the duel layered waterproof film