A patented locking action provides an unrivaled combination of power, speed, accuracy and ease of use. One smooth flip of the lever locks it securely in place... and removes it just as quickly. The Shubb capo doesn't create tuning problems. Its soft, resilient rubber is specially designed to work just like a fingertip so it doesn't bend the strings over the frets. Its closing action is just like your hand, so it doesn't pull the string off center. As a result, no retuning is necessary!