Premium Material: The double-ended snap hooks are made of 316 stainless steel, which is often considered one of the most suitable materials for marine applications, especially those where chlorides are present. The double-ended snap hooks are perfect for diving and boating. Elegant Design, Durable and Sturdy: The double-ended bolt snap hook can be used to make a quick, reversible connection in a rope system, or to connect a rope or cord to another component. The button to open the ends is large and comfortable to press, and these double-ended clips are easy to operate and do not get stuck. Usages: The most common uses for double-ended chain snaps are in pet leashes, straps, horse tack, home or farm applications, and some boating applications—such as quickly tying up coils or rope, attaching boats to moorings, and keeping the deck tidy. Heavy-Duty: The SHONAN two-sided snap hooks provide strength and an attractive appearance. They have greater strength than most common steel snap hooks on the market. Each double-ended snap hook weighs about 2.1 ounces, with safety working capacity(SWL) up to 150 lbs. Satisfaction: Like all SHONAN products, the Stainless Steel 316 double ended Bolt Snap Hooks come with a one-year warranty. This page introduce the SHONAN double ended bolt snaps, which are made of 316 stainless steel.