Samyo BK-03A Professional Camera Tripod Ball Head Ballhead with Quick Release Plate Gradienter Professional and affordable, made of black anodized aluminum. Three operation knobs for precise locking, panning and tension controls. Come with the scale on the pan, suitable for panoramic shoots. Comes with removable quick-release plate with 1/4" screw, suitalbe for most cameras. 3/8" standard tripod screw for tripod. Built in 2 bidirectional bubble level indicators, make it convenient to shoot (horizontal or vertical).