Features: 1.Made of quality aluminium alloy material, anti-deformation, anti-rust, sturdy. 2.Lightweight aluminum alloy ball socket, meet the requirements of highly accurate and durable. 3.Aluminum alloy anti-oxidation ball seat, with ball-end clips, can be installed external fill light or action camera, or SLR camera. 4.Multi-directional connection fixed 360-degree rotation, shoot panoramic video, smooth and easy to adjust the angle. 5.Bottom for 1/4 screw hole, easily assemble. Good accessory for photography enthusiasts. Specifications: Material: Aluminum Alloy Ball head width: Approx. 1 inch Bottom 1/4 " screw hole Ball head 3/8" inch screw hole Suitable for OSMO ACTION, for 7 6 5 4, for SJCAM, for XiaoYi action camera. Packing List: 1 x Ball Head Base Mount Package List 1Made of quality aluminium alloy material, anti-deformation, anti-rust, sturdy. 2Lightweight aluminum alloy ball socket, meet the requirements of highly accurate and durable. 3Aluminum alloy antioxidation ball seat, with ballend clips, can be installed external fill light or action camera, or SLR camera. 4Multi-directional connection fixed 360-degree rotation, shoot panoramic video, smooth and easy to adjust the angle. 5Bottom for 1/4 screw hole, easily assemble. Good accessory for photography enthusiasts.