trombone lubricant set, 50 ml. bottle + 10 ml. bottle Slide-O-Mix Trombone Lubricant gives your slide a fantastic glide. It is a 2-component liquid lubricant, which adheres very well to the slide surface. There is no sticking or stopping of the slide. Slide-O-Mix is very economical in use. Very helpful, . especially for beginners, is the fact, that no faults in dosing are possible. To meet all different dosing habits, you can get both components of the set also single. Slide-O-Mix is the lubricant of choice for many internationally well known trombone players and can be found in many well known orchestras.