Perfect for players at any level, Yamaha Wind Instrument Care & Maintenance Kits provide an easy maintenance solution. Each kit is specially designed to contain the highest quality cloths, brushes, swabs, and lubricants to keep any instrument in top playing condition. Each kit also features an easy-to-understand care & maintenance manual and re-closeable plastic bag for item storage. The Horn Maintenance Kit features Yamaha's Premium Rotor Oil; specially formulated with an enhanced anti-corrosio