No comments necessary, immediate purchase welcome! This is a general strings guide, also known as a string retainer. Do you find the resonance on your Stratocaster-type guitar bothersome? This one item solves the problem. Metal washers provide excellent stability. The round-head screws are also a nice touch. The string angle changes, slightly reducing tension and making it easier to perform string bending. It also stabilizes tuning. [Contents] Set of 2 * Use the metal parts for height adjustment that you prefer, as they have different heights. ★-★-★-★-★-★-★ We do not offer discounts. No need to comment "Can I buy this?"! Please purchase directly! ★-★-★-★-★-★-★