The Herco HE186 Spitballs for Large Bore Instruments is an excellent substitute for brass swabs when it comes to keeping your horn sanitary and germ free. Simply insert a spit ball about 6 inches into the lead pipe with a pencil, replace the mouthpiece, and blow! While traveling through your horn, the HE186 Spitballs are able to remove dirt and grime that other instrument cleaners leave behind. It's recommended that you use the Herco HE186 Spitballs once a week, or more depending on how dirty your horn is. The Spitballs are not suggested for use in half-valved horns or in horns that have been dented or clogged. For best results, use the Herco Spitballs with the Herco flex-wire cleaner. Get yours today at Alto Music!