Jupiter JSP1110S Sousaphone (Silver-Plated)The Jupiter JSP1110S University Quad Valve BBb Sousaphone combines the benefits of a large bore with a concert tuba style four valve cluster for a larger sound with less resistance and better intonation. Comes with molded ABS case with wheels. Features Silver Plated Brass Body is made from the highest quality brass and finished with a bright silver plate ensuring fine playability and tonal brilliance Stainless Steel Pistons have remarkably smooth,