This Ravel Trombone Care Kit has everything you need to take care of your instrument. Product Features: Specialized brushes clean the trombone's interior. Slide oil and grease keep parts operating smoothly. Polishing cloth leaves the exterior shiny and smudge-free. Case ID tag adds convenience. What's Included: Mouthpiece brush Flexible bore brush Premium slide oil Slide grease Polishing cloth Case ID tag Product Details: Model no. OP344 Promotional offers available online at Kohls.com may differ from those offered in Kohl's stores. Size: One Size. Color: Black. Gender: Unisex. Age Group: Adult.