Our premium synthetic tuning slide grease's pro strength formula is the ideal viscosity to help lubricate all brass slides, including Trumpet, Trombone, French Horn, Tuba, Euphonium & more. Formulated in the USA to the highest standard for optimum long lasting performance in hot & cold environments to ensure your brass instrument plays the best. It contains no silicone or lanolin & is clear and odorless so your instrument always looks the best. Each jar comes with a generous amount of grease (0.5 oz/15mL), so it lasts longer & you buy less. That's MusicNomad quality - raising the bar in equipment care.