Precisely machined of brass, then nickel-plated , the Shubb Original Acoustic Guitar Capo is manufactured without compromise. Simply holding one in your hand conveys a sense of quality. Snapping it solidly onto a guitar neck, and then removing it, all within about one second, will confirm its reputation for excellence. 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 re-tuning is necessary!