OMS 90mm - 3 1/2" BigGrip� Stainless Steel Double-Ended Bolt-Snap A24510210 Hardware in any size or configuration with the highest level of grip has always been essential for serious Divers. Wearing thicker Neoprene or Dry Gloves in colder waters can lead to difficulties manipulating gear clips. OMS BigGrip� Stainless Steel Double Ended Bolt Snap Hooks have been specially designed using the highest Quality Marine Grade Stainless Steel with an extended section on the gates to ensure ease of use attaching and removing items of equipment from their B.C.D. or Tech Harness D-Rings below the Surface. Total Length of 90 mm � 3 1/2 Inches, with equally sized Opening Spring Gates at each end.