Made from high quality 316 stainless steel for high strength and corrosion resistance in seawater. This keeps durability and safety performance reliable in harsh marine environments. One end features a securing hook and the other end has a heavy duty screw cap to secure the flow diver on the safety line and keep the diver in place. Underwater performance: In currents or cave environments, it provides a secure grip and helps you keep steady. It frees your hands for underwater photography and observation. Ideal for cave diving, current diving, scuba divers, and underwater photographers. Accompanying accessories: The tether extends up to 1 meter and is built with 6 strands of stainless steel wire, with an outer PU coating. It includes an anti-lost D-shaped buckle and can be hung on a buoyancy jacket for secure storage, helping prevent loss of gear. Use scenarios: - Currents or cave dives: secure yourself to the safety line to stay in position while working with cameras or instruments. - Hands-free underwater photography and observation: maintain grip on the line while capturing images or observing marine life. - Equipment management: clip to a buoyancy jacket for easy access and to prevent misplacement of gear. Material and performance are kept consistent with the original design, providing a reliable and practical tool for divers and underwater photographers.