Hip Prusik 12-Strand w Aluminum Snap. With the use of the 2-in-1 safety lanyard on the rise we've had a lot of requests for various hip prusik configurations. works well on lines. 7/16 to 3/4 inch but require testing on the ground before putting into high-angle service. This instant and secure rope-ratcheting device has a variety of users and producer less wear on host lines than mechanical grabbing devices.