The Tylaska T5-T16 Stepped Taper Knurled Shackle fids are machined from solid aircraft 6061-T6 aluminum and knurled for a more secure grip. Available in three sizes, all handheld fids are anodized in a choice of either blue or red. The front taper fits all designated Tylaska shackles as well as many other brands. The rear thru hole allows easy attachment of a lanyard or wrist leash. An indispensable tool for a fast and safe release of lines under heavy load.