MaterialMade of aluminum alloy, this camera extension arm is sturdy, ensuring reliable performance even in extreme conditions.FeatureThis is an extension bracket for action camera, a must-have accessory for your action camera.FunctionAluminum alloy extension arm for action camera, easy to install use. This extension arm provides the great balance between functionality portability.Versatile UseYou can use this arm to securely attach multiple diving equipment, camera accessories, monitors, lights, fill light, buoyancy arm, or underwater lighting equipment to your favorite camera system.Wide ApplicationAluminium alloy extension hle bracket for action camera, extend diving light arm is ideal for various outdoor activities like cycling, motorcycling, skiing etc. Specification: Material: Aluminum Alloy Size Chart: 8.5cm/3.35inchor16.5cm/6.50inchor20cm/7.87inchor25cm/9.84inch Package Includes: 1 Piece Camera Underwater Extension Arm