Tylaska 2:1 Halyards Shackles - Specifications and Comparison
Tylaska True 2:1 Sheaved Shackles
Using a high strength composite sleave bearing, Tylaska has
created true 2-1 halyard shackles capable of handling the full
rated load of the shackle. The size was made to fit standard
sail headboards without adding any unnecessary weight.
Strength was optimized by computer and then verified by
numerous "make and break" destructive tests.