Features: Aluminum alloy material, precision CNC-machined for durability and stability. 30mm ball diameter with a maximum load capacity of 5kg (11.0 lbs). 360-degree swivel panoramic ball head design with ergonomic damping adjustment knob for smooth operation. Features both coarse and fine focus adjustments with secure locking mechanism for reliable and stable shooting performance. Built-in bubble level helps quickly achieve proper balance and alignment. Universal compatibility with 1/4-inch screw and 3/8-inch bottom thread, compatible with most DSLR cameras, camcorders, tripods, mini tripods, sliders, and monopods. Specifications: Model: QB-30A Material: Aluminum alloy Height: Approx. 83mm (3.26 inches) Ball Diameter: 30mm (1.18 inches) Base Diameter: 40mm (1.57 inches) Bottom Thread: 3/8 inch Top Screw: 1/4-20 Load Capacity: 5kg (11.0 lbs) Note: Please allow 0–1 cm error due to manual measurement. Confirm you are comfortable with this before ordering. Slight color variations may occur due to differences in screen resolutions. Package Includes: 1 x 360-Degree Panoramic Ball Head