Features:￠ Professional ball head for camera tripod or slider￠ Made from black anodized aluminum and has two head locking knobs and one pan locking knob￠ Arca-Swiss style PU-50 slide-in quick release plate. Universal interchangeable industry standard QR system. Plate dimensions: 1.45 x 2.36 inch (37 x 60 mm)￠ Independent 360-degree pan control knob makes full or partial horizontal panoramic adjustments easy￠ Two bubble levels to adjust the degree of head's levels￠ Ball diameter: 36mm. Base diameter: 55mm. Max load: 15kg. Panning Range: 360 degree with panning scale