The Base Adapter for the KeyMission 170 from Nikon is a ball-joint support adapter that allows you to mount the KeyMission 170 Action Camera on adhesive KeyMission Base Mounts; and adjust the camera angle along the ball joint.
The supporting Base Mounts are also used on many KeyMission support mounts, such as the Chest Mount, and the Base Adapter can therefore also be used to attach the camera on those supports. The Base Adapter attaches to/removes from Base Mounts by a quick-release mechanism.
