“The HAL-LOCK outrigger pulley was specially designed for speed and efficiency (and it looks good too).  Simply pull the locking lever back and the halyard is pushed into the softer urethane insert locking the halyard in place.” Select from single, double, or triple pulley versions. Price is per Hal-lock, so to rig a boat’s outriggers, you will need two Hal-lock’s. To rig one center rigger, you will need one Hal-lock.