The Yamaha YAC 1021P trombone slide lubricant is a favorite of both professional and student musicians. This simple but effective lubricant features a specially designed formula that ensures long-lasting performance and incredible slide action. Yamaha YAC 1021P trombone slide lubricant is simple to apply and doesn’t contain any messy creams or require a multi-part application. Just apply a few drops to each side of the inner slide tubes, and you’re ready to play!