The double ballhead mount with mainly aluminum alloy construction adopted advanced CNC (Computer Numerical Control) and anodisation process machining, featuring being solid, anti-rust and abrasion resist. With 1/4 inch screws connectors and 360 degree rotatable dual ballhead, the extensibility is broadened. The ballhead mount can mount photography light, phone clamp, etc., meanwhile can be mounted on handle grip, tripod, and so. More pleasure and enjoyment for you to explore. Features: MATERIAL: Mainly aluminum alloy construction, featuring being solid, anti-rust and distortion-preventing, durable for use. MACHINING: Finely processed by precision CNC machining and anodisation tech, for the nice appearance and better user experience. EXTENSIBILITY: 1/4 inch screw connectors for linking to mobile phone, photographic light, tripod, etc., to add to your creativity. ANTI-DROP: Ball falling out is nearly impossible for anti-drop structure will held them tight but without losing the flexibility. RUBBER PAD: Elastic rubber pad set on the connecting part where other devices will contact to avoid scratching other equipment. Specifications: Material: Aluminum Alloy Color: Blue / White (optional) Screw: 1/4 Inch Screw Hole: 1/4 Inch Item Size: 9.3 * 8 * 2.1cm / 3.7 * 3.1 * 0.8in Item Weight: 70g / 2.5oz Package Size: 10 * 8.5 * 2.5cm / 3.9 * 3.3 * 1in Package Weight: 100g / 3.5oz Package List: 1 * Magic Arm