The Halyard Strop is now a shorter piece of rope (which does not come all the way down the mast). It should be looped with a knot close to the tail ends of the rope. The rope stopper is then threaded onto the loop and pulled down to the knot. The loop is then threaded through the front of the mast crane (the longer bit), over the top and down through the back of the crane, then through the top of the sail, back over the top of the mast crane and looped back over the rope stopper, to hold it tight. Includes Stopper.