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5. 337-SEL

Selmer 37-SEL Slide-O-Mix Trombone Lube System

No more mess.  No more oily hands.  It's just smooth sailing with the Conn-Selmer 337 Slide-O-Mix 337 Trombone Lube System.  Preferred by professionals worldwide, only a small amount of this long-lasting trombone maintenance formula applied directly to your slide from the bottle will give it maximum speed and action for easier playing. Get yours today at Alto Music