The Low Brass Maintenance Kit by Yamaha is designed to provide beginning musicians with everything they need to keep their low brass instrument in top playing condition. This maintenance kit is specifically designed for instruments with piston valves. It includes complete instructions and easy-to-understand diagrams that guide players through step-by-step care for their instrument. The kit is conveniently packaged in a reclosable plastic bag for easy storage. With the Yamaha Low Brass Maintenance Kit, musicians can ensure that their instrument stays in optimal condition for a great playing experience.