The Ernie Ball Axis Capo’s ergonomic features allow for fast and accurate single-handed key changes.Featuring an innovative dual-radius design, this guitar capo fits most every electric and acoustic model in your collection, whether you play six or seven-string, with either a flat or curved fretboard. Wherever your inspiration takes you, only the Axis Capo gives optimal clamping pressure for crisp on-pitch tone, all the way up the neck. Take the Axis guitar capo on the road and trust precision-molded rubber pads to protect your guitar finish. On the stage or in your writing space, it has to be the Axis Capo.