RAM® U 型螺栓支架，適用於 Garmin GPSMAP 73、78、78S、78SC - 不鏽鋼

Used this on my boat for a week in saltwater and the stainless steel u-bolt shows no signs of rust, which is exactly what I needed. The cradle locks my 78SC in tight even when hitting waves at speed.

The double socket arm holds my GPSMAP 78 rock-solid even when I hit wakes on the lake, and the stainless steel base hasn't shown a speck of rust after two months of saltwater trips. The cradle snaps in and out of the diamond adapter cleanly, which makes transferring the unit between my boat and truc

The stainless steel U-bolt base tightened down perfectly on my aluminum boat's railing with no slipping. The double socket arm keeps my GPSMAP 78 positioned exactly where I want it, even when hitting some decent chop. Totally solid setup that gives me peace of mind on the water.