1、Aluminum alloy construction with anti-oxidation treatment, anti-rust, high performance of stability and durability, providing a max load capacity up to 15KG 2、With 5 stops from 15 degree to 90 degree, can meet your various needs and allows you to shoot a night panorama without looking at the gradient 3、Standard 1/4inch screw on the top, 3/8inch screw hole at the bottom for tripod, suitable for mounting on many accessories such as slider, tripod, etc 4、Portable and lightweight, easy to carry with you to get panoramic photo at anywhere and anytime 5、Very convenient and practical for daily transporting and storing. An indispensable accessory for photography lovers Features: Aluminum alloy construction with anti-oxidation treatment, anti-rust, high performance of stability and durability, providing a max load capacity up to 15KG. With 5 stops from 15 degree to 90 degree, can meet your various needs and allows you to shoot a night panorama without looking at the gradient. Standard 1/4inch screw on the top, 3/8inch screw hole at the bottom for tripod, suitable for mounting on many accessories such as slider, tripod, etc. Portable and lightweight, easy to carry with you to get panoramic photo at anywhere and anytime. Very convenient and practical for daily transporting and storing. An indispensable accessory for photography lovers. Specification: Material: Aluminum Alloy Color: Black Screw: 1/4'' Screw Hole: 3/8'' (with 3/8'' to 1/4'' thread adapter) Angle: 90, 60, 45, 30, 15 Working Temperature: -40°C - 50°C Payload: Max. 15KG Size(Dia x H): Approx. 3.8*4cm / 1.5 x 1.57inch Weight: Approx. 294-328g Packing List: 1 x Ball Head 1 x 3/8'' to 1/4'' Thread Screw Adapter 1 x Screwdriver 1 x Storage Bag Other items in the picture are not included.