- Durable Construction: The 9" Double Ball Aluminum Alloy Extension Arm is crafted from aircraft-grade aluminum alloy, featuring a hard oxidation treatment that protects against deep-sea corrosion. Its lightweight design reduces resistance underwater, allowing for effortless camera operation and control, making it an essential piece of gear for underwater photography. - Universal Compatibility: Measuring 9'' (22.86 cm) in length with a 1" (25 mm) ball head, and weighing only 2.58 oz (73 g), this extension arm is compatible with all arm systems that utilize a 25 mm ball head. Easily attach multiple dive rigs, such as fill lights and buoyancy arms, by extending the arm for enhanced versatility. - Enhanced Stability: The 1" ball head features a rubberized O-ring to minimize friction during attachment, providing a stable and secure support for your lighting system. This stability is crucial for capturing clear, vivid images while diving, snorkeling, or engaging in other underwater activities that require reliable illumination. - Flexible Adjustability: The double ball extension arm, equipped with butterfly clips, allows for multi-directional attachment of flash or video lights. With 360-degree rotation, you can easily adjust the angle of your light source to achieve optimal lighting conditions for your ideal underwater shots. - Practical Applications: - Capture stunning underwater photography while diving, ensuring your lighting is perfectly positioned for clarity. - Use during snorkeling trips to illuminate marine life and scenery effectively. - Ideal for underwater videography, providing stable lighting for dynamic shots without shake or movement.