PULUZ 8 inch 20.3cm Aluminum Alloy Ball Arm for Underwater Torch / Video Light, Ball Diameter: 2.5cm

1. Made of high quality aluminum material, durable to use. 2. Strong, lightweight, waterproof aluminum construction 3. Use this ball arm between one ball clamps to extend an arm. 4. Part of the arm expandable, adaptable, universal mounting system. 5. You can use this arm to securely attach camera accessories, monitors, lights, or underwater lighting equipment to your favorite camera system.