1.Manufacturing material: Made of high-quality 316 stainless steel, high strength, seawater corrosion resistance, durable, long-term use, stronger, and high safety performance. 2.How to use: There is a hook on one end and a heavy-duty screw fastener on the other end to hold the diver in place and keep the drift diver on the safety line. 3. underwater : 't be afraid of undercurrents when diving. The stainless steel current hook can give you safe support and stay, and it can also free your hands for underwater photography and underwater observation. Caves, Great gear for drift diving, scuba divers, underwater photographers and more. 4.Accompanying accessories: Juli super elastic super long tension, up to 1 meter, strong and durable, built-in 6 strands of stainless steel wire, external color PU coating, anti-lost D-shaped buckle, can be hung on the BCD, reasonable storage, Things will never be found again. 5.Easy to use: The design is easy to carry, easy to use and fine workmanship. Even if you are using it for the first time, there is no requirement for any difficulty. [Precautions] The flow hook is not a weapon, use of the flow hook while admiring the beauty of the seabed, do not use it to attack or excessively harass marine life Be careful not to accidentally injure your diving partner. [Two uses] When you a strong underwater undercurrent, you can hook the current hook to the reef to prevent being taken by the undercurrent. It can hook the reef and stabilize the body, so that you can underwater more . Item Type:Double Reef Hook Colour:Black Material:stainless steel Package Contents: 1 * diving spring hook Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.