The Sunwayfoto DDH-05 Panoramic Panning Clamp is an Arca-type compatible panning clamp that can attach directly to your tripod, or on top of your ball head. When it is mounted directly on a tripod it is a simple panning head. The included AM-02 QR plate allows you to mount the DDH-05 on an Arca-type compatible ball head, thus turning the ball head into a leveling base, allowing you to pan your camera on axis with the horizon. The clamp rotates a full 360°, and has laser engraved index markings, allowing you to precisely pan your camera between shots.