Features: Specially designed for diving enthusiasts, providing stable buoyancy adjustment. Its sturdy structure ensures long term use in deeply sea without deformation, making it suitable for professional divers and recreational divers. Make of stainless steel, it has excellent corrosions resistance and can maintain good condition even in saltwater environments. Ergonomic design makes wearing more comfortable and does not impose additional burden on the body. Provide stable counterweight support to ensuring balance and safety of postures during diving. Suitable for various underwater activities, such as recreational diving, professional diving training, to improve the comfort and safety of the diving experience. Specifications: Component: Stainless Steel Size: about 8x8cm/3.15x3.15inch Rope Length: about 31.5cm/12.4inch Package Includes: 1pc Diving Weight Fixed Holder note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.