Unclaimed, bargain outlet item. Although unused after acquisition, there is a black painted area on the main body, possibly a manufacturer's repair. There is no problem with use. The cardboard box has developed mold, possibly due to the age of this unclaimed item. Please understand. Product Overview Quickly level a camera or video head Allows for quick leveling of a camera or video head. It uses a φ 50 mm leveling half-ball, eliminating the need to spend time adjusting the length and angle of each individual tripod leg. The leveling half-ball is mounted on top of the tripod's center column. Locking/unlocking the half-ball is done with a rotating grip at the bottom of the center column. 3/8″ screw included The rotating grip can be removed when attaching the pole to the tripod. A 3/8″ screw is included on the half-ball mounting plate for attaching to a camera or video head. Product Specifications Attachment: 3/8 inch screw attachment type Bubble level (number): 1 number Color: black color Center pole cross-section: three-faceted Center pole tube diameter: 25mm Center pole travel: 26.0 cm Half-ball diameter: 50.0 mm Length: 40.4 cm Load capacity: 5 kg Material: aluminum Patent: pat. pending Weight: 0.67 kg