No comment, immediate purchase welcome! This is a general strings guide. Also known as a string retainer. Are you using a Stratocaster-type guitar and concerned about resonance? This one item solves the problem. Metal washers provide excellent stability. The screws are also round-headed and look good. The angle of the strings changes, slightly reducing tension and making it easier to do string bending. Also, tuning becomes more stable. 【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! ★-★-★-★-★-★-★