The D'Addario Tour Grade string peg winder is a multi-functional tool designed to optimize performance for luthiers, guitar techs and musicians changing strings. You'll appreciate the ball bearing, non-marring socket that allows for smooth and effortless winding without damaging your instrument. Molded ergonomic grips provide exceptional comfort, even during extended string-changing sessions. A spring-loaded bridge pin puller integrated into the tool expedites string removal and installation, letting you swap out strings quickly. With its intelligent design combining several essential features into one compact tool, the Tour Grade peg winder streamlines your string-changing process while delivering optimal precision and performance.