The FLM QRB-70 Quick Release Base provides a quick release solution to tripod heads without the quick release feature of mounting and unmounting cameras in a hurry. It will fit on any head or tripod that has a 3/8" threaded screw. The Base has a flip-lever quick clamping system and the integrated plate locking device creates a fail-safe system to handle even the heaviest cameras. Two plates are available for this system: long (standard) rectangular plate for full size cameras, or a shorter square plate for lighter cameras.