A single-step mixture similar in appearance and function to other single-step mixes. Endorsed and used by Joseph Alessi, principal trombonist of the New York Philharmonic Orchestra. To be used optionally in conjunction with a water spray bottle. 1 ounce bottle. Fragrance free. Non toxic. Made in USA. -cdp Ultra-Pure Trombone Slide Lube has the perfect balance of speed, smoothness, and endurance. It goes on easily and does not build up. It does not separate under hot or freezing conditions. A few drops on each stocking and a few drops on the upper part of the slide is all you will need for several days of playing. -the manufacturer