This Uniqball Gimbal Bridge 250 is an Arca-type compatible multifunctional 250mm long slide that provides extended features and thus enhances the applicability of Uniqball heads. The Gimbal Bridge allows you to add a gimbal-like feature to Uniqball UBH heads. It is also useful in panorama shooting, where aligning the nodal point of the lens above the rotation axis of the ball head is required for the smooth blending of the neighboring frames. The Gimbal Bridge is an ideal device for setting the nodal point. It is useful for mounting other accessories, especially off-camera flash units. The Uniqball UBH45 is recommended for gimbal funtionality.