We always need to attach more stuff to our equipment to free up our hands when we need them. Lanyards for lights, cameras, gauges, game bags, or maybe even a fish stringer when spear fishing. The Highland by XS Scuba 4.0" (10.2cm) Shackle Bolt Snap can meet this need. The shackle bolt snap provides a semi-permanent attachment for positive retention. By un-threading the shackle screw and re-threading it to a BCD or harness D-ring the shackle bolt clip becomes secure and semi-permanently mounted. The Highland by XS Scuba Shackle Bolt Snap is manufactured from marine grade 316-stainless-steel with an 18-8 rust-free stainless-steel internal spring. The shackle attachment provides a pivot point and the bolt clip rotates 360° for easy access and attachment of accessories. The shackle bolt snap makes a great save-a-dive-kit item.