Sachtler Sandwich Touch and Go Quick Release System with Camera Wedge Plate.

Retrofits other tripods and Monopod, includes Camera plate #1064
Size: 4.9 x 2.9"/ Weight: 13.1 oz. / 1/4" by 20 and 3/8" screw mounts. This Sandwich Adapter allows the Touch & go quick release system to link to other tripods and applications . It eliminates repeating screwing and unscrewing the camera to the tripod head. It has a safety lock lever preventing accidental disengagement of the camera latch.