Bach Tuning Slide Grease is a high-quality brass instrument accessory that is perfect for keeping your tuning slide free for easy adjustment. This grease features a special long-lasting formula that ensures your tuning slide stays lubricated for optimal performance. It is suitable for use with any trumpet or trombone and is easy to apply. With Bach Tuning Slide Grease, you can maintain the smooth operation of your instrument and achieve precise tuning.