Z-Axis. Features: Add a new level of smoothness to your Osmo film making with the Z-axis. It takes out the vertical movements of natural walking to make shooting smooth video as simple as walking with your subject. The Z-Axis is NOT intended for action sports that involve extreme movement or to be used with other non-DJI devices. The Z-Axis is NOT compatible with the Osmo Bike Mount, Extension Rod and Tripod. Weight: 282g. Dimensions: 212mm x 67mm x 127mm. Compatibility: Osmo /+.