Aluminum Winch Shackle. Stronger and More Secure than Winch Hooks. Aircraft Grade 6061 T-6 Billet Aluminum. 17,000 lb Load Rating. Black Powder Coated Finish. Compatible with 7/8″ and 3/4″ D-Rings. Works with Both Synthetic Ropes and Wire Cables up to 1/2″ in Diameter. For Use with Roller or Hawse Fairleads.