DJI PROSSD 1TB.

The anti-slip grip is comfortable and easy to hold. The hollow design keeps DJI Action 2 or Osmo Action floating when shooting in water. It can be easily attached to the Waterproof Case and can also connect to a tripod or other accessories via the 1/4" screw hole at the bottom.

Osmo Helmet Chin Mount Clip.
Securely mounts your camera to the chin of a helmet. It is easy to attach and detach. With adjustable tilt angles, your camera can stay forward-facing even during low-position riding.
Compatibility:
Osmo Action 5 Pro
Osmo Action 4
Osmo Action 3
DJI Action 2