Multipurpose brass and woodwind lubricant for flat springs and tracks, pivot screws, wing/neck screws, joints, linkage, hinges, levers, valve stems and caps, and screw bells. Guards against wear and corrosion. Waterproof synthetic. Plastic-safe. All Hetman Musical Instruments Lubricants offer superior lubricating qualities, are longer-lasting than other lubricants, 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. Multipurpose brass and woodwind lubricant for flat springs and tracks, pivot screws, wing/neck screws, joints, linkage, hinges, levers, valve stems and caps, and screw bells. Guards against wear and corrosion. Waterproof synthetic. Plastic-safe.