Bach Synthetic Rotor Oil is a high-quality synthetic oil specifically designed for use on brass instrument rotors. This oil is formulated to provide smooth and reliable performance, ensuring that your instrument's rotors operate at their best. The synthetic formula helps to reduce friction and wear, extending the lifespan of your instrument and keeping it in optimal condition. With Bach Synthetic Rotor Oil, you can trust that your brass instrument will have the lubrication it needs for effortless playing and long-lasting durability.