Our Fairlead Thimble is used on your winchline to prevent the line from getting pulled into the fairlead. This is where most accidents happen in winching, often due to winch "run-on" from electric winches. The thimble is designed to be used with a 3/4" shackle. The thimble can be pulled tight against the fairlead which eliminates any rattling that usually happens with other hardware. This thimble is also lightest option for a winch line and specifically designed for use with synthetic ropes.