koolehaoda Tripod BallHead with QR Quick Release Plate For Camera Tripod Ball Head,Compatible with Arca Swiss plate load: 20KG(KQ-20 Red) :High-quality all-metal ball head, the sphere's diameter is 36mm, CNC super machining, multi oxidation treatment on the surface, black touched with blue, with a very smooth hand feel and excellent durability; :Three independent control knob, adjust each different rotation angle of the head separately, precisely control every adjustment of the ball head; :Removable quick-release plate, comes with 1/4 "screw, suitable for all SLR cameras; The bottom of the ball is 3/8 "screw holes, can be widely applied to various professional tripods. :PU-60 Quick Release Plate: The PU-60 quick release plate for Benro New generation B-1, J1 Ballhead. The PU-60 Universal Quick Release System has been designed to be compatible with other brand quick release systems. Suitable for most ball heads. :Safe Screw installed in Both side to prevent drop of camera by accident. You can change the location of the screw to fit different cameras.