Koolehaoda Metal Ball Head Ballhead + Quick Release Plate for Tripod SLR Camera The use of high-strength aluminum T6 aeronautical grade build, hard anodized surface, wear anti-scratch, texture and beautiful. 360  horizontal rotation panoramic head. 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. Built in 2 bidirectional bubble level indicators, make it convenient to shoot (horizontal or vertical). Security systems intimate design, effectively prevent the camera from accidentally falling off.