The patented Planet Waves Bass Pro-Winder is a high-quality peg winder with a built-in string cutter and stretcher. Designed for both vintage and modern style bass tuners it is the ultimate all-in-one bass restringing tool. Hardened steel clippers ensure years of reliable performance. Also available in a guitar version that works on guitars, banjos and mandolins. Keep one in every case! D'Addario is known for innovative, problem-solving, quality musical accessories offering a complete line of award-winning accessories including cables, picks, tuners, capos, straps, humidifiers, maintenance tools and more.