This RAM mounting stand is designed specifically for the Garmin Striker Plus 4. It clips directly onto the back of the device and features a 1' ball mount that works with RAM mounts. The ball is left slightly smaller than 1' to allow heat shrink to be applied to the ball, providing much better grip when tight so it doesn't move. The hole through the centre allows for an M4 x 35mm screw with a hex nut for extra strength.