When screwing in your tips, connectors or stoppers, insert this tightening key(s) into the lifeline hole found on each metal join at the ends of your TWIST & SPIN cables, connectors or stoppers.
Simply use the key as a handle to help you grasp and tighten the screw connection.
Use the key EVERY time you attach your tips to a cable.
You will need the key to loosen the connection when removing the tips from the cable.
Choose Mini keys for your US Size 000-1.5 Mini Tips and Mini Cables
Choose SPIN/TWIST Keys for your [S] & [L] US Size 2 - 15 Tips and [S] & [L] Cables