Designed to help retain the tone of your instrument and keep you in tune, without getting in the way of your hand. Weighing in at only 1/4 oz. (8 g) the new UltraLight capo packs next generation composite technology into a simple and elegant design. Essentially a strap around your guitar neck, the capo is virtually unnoticeable and the easy click, twist and play action gives you fast, buzz-free capoing. For acoustic and electric steel string guitars.