Winch line tail chains are simply a flexible chain and hook attachment for use with wire rope, offered in both economical carbon and stronger alloy versions (select sizes). Use the chart below to match your winch line size to the proper tail chain--the length specified is exclusive of the hook. The hook is made from drop forged alloy steel and heat treated for extra durability, and is specially designed to prevent wear on wire rope. Safety factor of 3.5:1. Made in the U.S.A.