What devices are compatible with the DJI Osmo Action Curved Base Kit?

The DJI Osmo Action Curved Base Kit is compatible with Osmo Nano (requires Osmo Dual-Direction Quick-Release Adapter Mount, sold separately), Osmo 360 (requires Osmo Action Quick-Release Adapter Mount, sold separately), Osmo Action 6 (use with the Osmo Dual-Direction Quick-Release Adapter Mount), Osmo Action 5 Pro, Osmo Action 4, Osmo Action 3, Osmo Action 2, and Osmo Action.