Tylaska T40 Snap Shackles are designed for massive sailboats or for towing or individual applications. With a breaking strength of 18T, this shackle can handle sail loads on the largest of sailboats. They can be opened using either a trigger or lanyard. A lanyard allows for remote operation - ideal for towing applications. The locking pin provides extra security from accidental release. Clevis Bails do not require splicing and provide moveable attachments to rings, deck fittings, furlers, rolling furlers, etc. Ideal for many uses.