- Lightweight and strong: built from lightweight carbon fiber combined with a robust aluminum alloy, this buoyancy extension rod is easy to handle while providing solid support for your gear. - Choose your length: available in three sizes (12.7 cm, 20.3 cm, and 25.4 cm) to tailor the extension to your specific photography or diving needs. - Efficient buoyancy indicators: the rod features clear buoyancy data, allowing you to easily gauge performance underwater. - Cross-device compatibility: standard 2.5 cm ball head fits most photo equipment and accessories. Use scenarios - Underwater photography: use the appropriate length to position your camera rig for stable, balanced shots without disturbing the scene. - Flexible diving setups: adjust the length to fit different housings or accessories for various rigs. - Surface or near-surface shoots: extend your reach to keep gear clear of water and obstacles on boats or in shallow water.