The DJI Osmo Base is used to fix the Osmo gimbal on tables or other level surfaces so that it remains stable without tipping over. It can additionally be mounted on desktop tripods and other supports via a 1/4"-20 threaded mounting hole on the bottom.
For Osmo, Osmo plus, Osmo Mobile/Pro/Raw
Holds the Osmo on Tables/Level Surfaces
1/4" 20 Tripod Mount Hole on Bottom