Aluminum alloy, wear-resistant, corrosion-resistant, antioxidant. Multifunctional photography round tube clamp, equipped with a cold boot interfaces, it can be installed on a tripod or bike for use. Suitable for 1/4 interfaces cameras, motion cameras, fill lights, selfie sticks and more. Can be used for various products with 1/4, 3/8, or cold shoe interfaces. Including 1pc round pipe clamp, 1pc PU40 plate, 1pc 1/4 double headed screw adapter, and 1pc 1/4 turn 3/8 screw.