TUNING WRENCH & PINOur tuning kit includes 16 tuning pins, 1 gooseneck tuning hammer lever, 1 dust-free cloth, and 1 storage bag. Easy to store, carry and use. The pins are made of stainless steel, and can be used for a long time. | APPLICATIONSGood sturdy tuning tools are designed for lyre harp , zithers, harpsichord, dulcimer ,harps, and other primitive stringed instruments. Helpful for instrument players and music lovers. | FUNCTIONYou can use the stainless steel pins to fix string, while use the tuning wrench to adjust the tension of string by using turning clockwise or counterclockwise. |