The aluminum alloy Extension Arms are available in two lengths - 5 inches (15cm) and 8 inches (20cm) - and are used for flexible positioning of underwater video lights and accessories. They provide a stable, customizable solution for different shooting requirements. The more compact 5" version is ideal for confined environments, while the 8" version allows for greater reach and wider light coverage. The arms are lightweight, corrosion resistant and designed for underwater use. Weighing just 53g on land and 14g underwater, they offer optimum handling and high stability.