The D'Addario Pro-Winder is a high-quality string winder with a built-in string clipper and bridge pin puller. The Pro-Winder is designed to fit virtually all guitars, basses, banjos, ukuleles, and mandolins. Ergonomically designed with durable hardened steel wire cutters, the Pro-Winder string winder is the ultimate all-in-one restringing tool.