DJI Waterproof Case for Osmo Action 3/4 compact ball head There is also a Camera

There is also a Camera Lens Cover that acts as a lens cap when the camera is not in use

Battery Length: 69mm

DIMENSIONS: Φ20mm X 24

The 67mm NanoPro Magnetic Circular Polarizer Filter from Haida comes with an adapter ring that screws onto your lens

The Haida 67-77mm Magnetic Step-Up Ring screws onto the 67mm filter thread of your compatible lens

DJI Waterproof Case for Osmo Action 3/4 compact ball head There is also a CameraKey Features Waterproof Case for Osmo Action 3 & 4 IP68 Waterproof to 197' Standard 2 Prong Mount on Bottom 3 x Anti Fog Inserts Included Designed to protect your Osmo Action 3 or Osmo Action 4 camera at depths to 197', this Waterproof Case from DJI provides a clear display of your Osmo Action 3 or 4 viewscreen. Durable glass covers the lens for protection and crystal clear viewing underwater, and three anti fog inserts are included to prevent fogging.