Brand New Factory Sealed Giardinelli Trumpet Valve Casing Brush Giardinelli Trumpet Valve Casing Brush The Giardinelli Trumpet Valve Casing Brush is a must-have tool for trumpet players to maintain the cleanliness and functionality of their instrument's valve casings. This specialized brush is designed to effectively remove dirt, debris and residue that can accumulate inside the valve casings over time. Crafted with durable bristles and a flexible wire handle, the Valve Casing Brush allows for thorough cleaning without causing any damage to the delicate valve casings. The slim and compact design of the brush makes it easy to navigate through the narrow passages of the valve casings. Regular cleaning of the valve casings with this brush helps prevent valve sticking and sluggishness, ensuring smooth and reliable valve action. It also aids in maintaining optimal instrument performance and responsiveness. Used in conjunction with the Giardinelli Trumpet Bore Cleaner (sold separately), this cleaning combination is the best defense to prolong the lifespan of your instrument and prevent costly repairs due to lack of maintenance. Using the trumpet valve casing brush is simple. Insert the brush into the valve casing and gently scrub the inner walls to dislodge any buildup. Rinse the valve casings thoroughly afterward to remove any loosened debris.