The QR-2 Camera Plate from Cambo is a dovetail quick-release plate designed for the Cambo CBH-5 QR ball head and is a replacement for the quick-release plate that's included with the CBH-5. The QR-2 is compatible with both QR-1 and QR release clamps and features a 1/4"-20 camera mount screw.
Quick-release plate for CBH-5 ball head