Designed for standard electric and acoustic 6-string guitars, the D'Addario Capo Lite assures buzz-free, in-tune performance at any fret. A micrometer adjustment mechanism allows you to dial in the exact tension needed for for your guitar, strings, and playing position. This greatly reduces the need to retune your guitar during and after capo use. Molded ABS construction offers lightweight ease-of-use, and superior functionality at an affordable price.