Features: The rod is extendable at 19-31cm/7.5-12in length, stepless adjustable to meet different needs. Upper 1/4-inch screw and bottom 3/8-inch thread plus 1/4 to 3/8 adapter are widely compatible with equipment. Widely for ball head, camera, stabilizer, action camera extendable use on tripod. Made of high grade aluminum alloy, CNC crafted structure makes it solid for heavy loading. Comes out smooth surface and delicate appearancecomfortable to hold and tough to use. Specifications: Color: Black Material: Aluminum alloy Length: 19-31cm / 7.48-12.20in Diameter: 4cm / 1.57in Net Weight: 115g / 4.06oz Package Size: 24 * 6.5 * 4.5cm / 9.45 * 2.56 * 1.77in Package Weight: 142g / 5.01oz Packing List: 1 * Extension Rod 1 * 1/4inch to 3/8inch Adapter