REC-MOUNTST 400 standard lower adapter for Garmin friction mount [400-GMUT]

Aluminum lower adapter compatible with the friction mount (Quarter-turn to Friction Flange Mount Adapter) that comes with Garmin Varia UT800 smart headlight purchase [400-GMUT] Compatible only with the mounts listed in the compatible mount table and compatibility table .9 x 7.2 x 1.9 cm; 5 g