Waterproof Protective Case for GPS Satellite Navigation devices is supplied with a 1"(25mm) Female Socket that fits any major motorcycle mount manufactures that use this 1" ball fitting system. Works with any RAM or SW-Motech motorcycle mount using the 1" ball fitting along with our Addons Fork Stem Yoke Mount. The universal case is waterproof and will protect from rain or damp weather. Suitable for SatNav devices no larger than 13.2cm x 8.5cm x 3cm. Case has touch sensitive lens and charging cable access. Includes brass security screw. This GPS SatNav case bundle is an accessory to your own mount. It is for use with an existing RAM, SW-Motech mount or with the Ultimate Addons Fork Stem Mount.