Superslick's AlphaSynth Trombone Handslide Lube is an incredibly unique formula that is designed to be used sparingly. A little bit goes a long way! Clean the inner slide before application and simply apply a drop or two to each stocking, spread with your fingers across the entire inner slide tube and spritz with distilled water. Refresh with water as needed. Cleans easily when reapplication is required. Most importantly, AlphaSynth is completely safe for classroom use. Made in Elkhart, Indiana, USA.0.50 ounce / 15 ml bottle.