Small Waterproof GPS SatNav Case with RAM 1inch Socket Fitting for RAM Mounts (SKU 16969) New smaller size GPS case for use with RAM motorcycle mounts. Waterproof to IPX4 standard. Case is supplied with a standard 1" socket adaptor for use with the ball of RAM motorcycle mounts or Ultimate Addons bike mounts. This case fits SatNav systems no larger than 10.7cm x 7.5cm x 4cm (4.22"x2.95"x1.57"). Just measure your SatNav to see if this case will be suitable. External measurements 13.25 x 10.5 x 5.5cm (5.22"x4.14"x2.17"). All measurements are approx. What do I get? 1 x small GPS case; 3 x support pads; 1 x 1" socket adaptor.