1、Low Gravity Center Design: Locking system was designed on the side of the ball head, which makes its gravity center 15% lower than traditional ball head and have better stability. 2、Aluminum Alloy Material \u0026 CNC Processing: Made of durable aluminum alloy, CNC processing and surface anodizing treatment, exquisite workmanship and smooth operation. 3、Anti-Skid Quick Release Plate: The quick release plate designed with 1/4 inch screw and 6pcs anti-slip rubber pads, can install DSLR camera, DV, camcorder easily and stably. 4、Dual Panoramic Structure \u0026 Double U-Groove: Dual panoramic structure design for more precise 360° panoramic shooting; double U-groove enables you to switch vertical and horizontal shooting quickly. Features: Aluminum Alloy Material & CNC Processing: Made of durable aluminum alloy, CNC processing and surface anodizing treatment, exquisite workmanship and smooth operation. Low Gravity Center Design: Locking system was designed on the side of the ball head, which makes its gravity center 15% lower than traditional ball head and have better stability. Dual Panoramic Structure & Double U-Groove: Dual panoramic structure design for more precise 360° panoramic shooting; double U-groove enables you to switch vertical and horizontal shooting quickly. Anti-Skid Quick Release Plate: The quick release plate designed with 1/4 inch screw and 6pcs anti-slip rubber pads, can install DSLR camera, DV, camcorder easily and stably. Easy Installation & Convenient Usage: The ball head can be mounted onto tripod, monopod and other devices with 1/4 inch or 3/8 inch screw for more stable and easier usage. Built-in bubble level can help you find the balance quickly. Specifications: Brand: Andoer Model: D-30 Material: Aluminum alloy Max. Load Capacity: Max. 18kg/40lbs Screw Mount for Camera: 1/4 inch Screw Hole: 1/4 inch and 3/8 inch Ball Sphere Diameter: 30mm Base Diameter: 43mm Item Weight: 294g/ 10.4oz Package Size: 12.5 * 10 * 9cm/ 4.9 * 3.9 * 3.5in Package Weight: 400g/ 14.1oz Package List: 1 * Ball Head 1 * Carrying Bag 1 * Screw Adapter 1 * Hex Wrench 1 * Flake Wrench 1 * Ball Head 1 * Carrying Bag 1 * Screw Adapter 1 * Hex Wrench 1 * Flake Wrench