Features: 1.MAIN FUNCTION: This oil is intended to keep brass instrument lubricated, prevent them from attracting dust and dirt, and extend their service life. 2.APPLICABLE RANGE: The lubricating oil is suitable for various brass wind instruments, such as saxophone, clarinet, trumpet, trombone and horn. 3.CORROSION RESISTANCE: The key oil is made of synthetic mixture, with good corrosion resistance and no damage to the brass instrument tube. 4.EASY OPERATION: The instrument key oil is extrusion nozzle design, which is easy to apply to the wind instrument and prevents leakage. 5.GOOD PROTECTION: This key oil ensures the long performance and protection of brass instruments, ideal for professional performers or beginners. specification:Item Type: Musical Instrument Key Oil Material: Oil, Plastic PackageList:1 x Musical Instrument Key Oil