Tach-It EZ Twist Locks offer a fast and economical way to securely position and hold wires, cables, tubing in place and can also be used for the sealing of plastic bags. A single twist of the finger locks the bundles together. Another twist will open the lock to add or remove products to the bundle. The Tach-It EZ Twist Locks are made of Nylon 6/6 and are U.L. Recognized and can be dyed in a variety of different colors.