Hetman 18 Needle Oiler Heavy Key Lube is a high-quality lubricant specifically designed for musical instruments. This needle oiler is perfect for maintaining the performance and longevity of your instrument. It offers superior lubricating qualities and is long-lasting. The viscosity of this lubricant is carefully formulated for its specific purpose, ensuring fast and positive action. It is completely compatible with conventional petroleum-based lubricants, avoiding potential gumming problems. Hetman 18 Needle Oiler Heavy Key Lube provides vital protection against wear and corrosion, keeping your instrument in optimal condition.