A brilliant idea which save a lot of trouble when fine tuning your rig. These stainless steel pins are securely fixed to a double side velcro wrap. Once you have adjusted your rigging screws just insert the pin and wrap the velcro around the body of the rigging screw. If you need to take an extra turn just unpeel the Velcro, adjust and refit. Save lots of blood spilt on the deck makes fine tuning a pleasure. Available in four sizes to fit most rigging screws.