Superslick's AlphaSynth Tuning Slide Grease contains high quality base synthetic components and creates a nice balance between tuning slide lubrication and friction to remain in place. The long-lasting formula also resists oxidation and corrosion on slides. Conveniently filled in a small tub, AlphaSynth Tuning Slide Grease makes it easy to apply the desired amount on tuning slides for your application, while still fitting easily in the instrument case. AlphaSynth is completely safe for classroom use. Made in Elkhart, Indiana, USA. 4 ounce shop sized container.