These 2 mounts are for Garmin Nuvi 1350 and Nuvi 50.
nuvi1350_forester.stl thing allows to install Nuvi 1350 in 1998 Subaru Forester above rear view mirror. This requires removal of the digital clock located there.
These mounts can turn around Y-axis.
Use M5 mounting screw with self-locking nut.