The D'Addario 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! Ergonomically designed for efficient and comfortable use. High-Quality peg winder with built-in string cutter and stretcher. Fits both vintage and modern basses. The ultimate restringing tool. Fits easily in any case accessory compartment.