Blue Juice Valve Oil is a high-quality valve oil that is perfect for brass instruments. This valve oil is made from refined petroleum and is designed to work effectively on close-tolerance musical instrument valves. What sets Blue Juice Valve Oil apart from other valve oils is its distinctive blue color and the added anti-corrosion agent that provides extra protection. The 2 oz size is perfect for carrying in your instrument case, ensuring that you always have the oil you need to keep your instrument in top condition. Trust Blue Juice Valve Oil to keep your brass instrument playing smoothly and sounding great.