Hetman 15 - Ball Joint Lubricant Protects all types of ball joints, promotes smooth action, and quiets noisy lever and linkage components Precision needle oiler All Hetman Musical Instruments Lubricants offer superior lubricating qualities, are long-lasting, and are completely compatible with conventional petroleum-based lubricants, thereby avoiding potential gumming problems The viscosity of each lubricant is carefully formulated for its specific purpose and assures both fast, positive action and vital protection against wear and corrosion All Hetman Musical Instruments Lubricants offer superior lubricating qualities, are long-lasting, and are completely compatible with conventional petroleum-based lubricants, thereby avoiding potential gumming problems