RAM Spine Clip Holder for Garmin Handheld Devices & 25mm Socket Adapter (sku 50983)RAM Spine Clip Holder for Garmin Handheld Devices & 25mm Socket Adapter 25mm Socket adapter allows cradle to attatch to existing 25mm ball mount (mounting option not included) This spine mount adapter easily clips into the integrated spine connection on a wide variety of Garmin devices. Fits; Alpha 100, Approach G3, Approach G5 Astro 320, Astro 430, Astro 900 Dakota 10, Dakota 20 eTrex 10, eTrex 20, eTrex 30,eTrex Touch 25,eTrex Touch 35 GPSMAP 62,