Amazon.com : https://www.amazon.com/gp/product/B002PC6OZ6?tag=eatingwelldia-20
RAM AQUA WATERPROOF BOX with Motorcycle Motorbike Bike Bicycle Handlebar Mount
Product Description :
Keep your SatNav system completely protected dry in bad weather suitable for most GPS systems TomTom Garmin Navman etc
Aqua Box 6 Internal Dimensions width4 inches100mm height6 inches152mm depth175 inches44mm External dimensions width525 inches133mm height65 inches165mm depth2 inches508mm
Flex-Lens enables buttons to be accessed through the lens
Supplied with a RAM handlebar mount that consists of a zinc coated u-bolt accommodating 34 to 1 rails
Arm from U-bold measures 3 inches to the centre of the AquaBox