Jupiter JBR700S 700 Series Baritone Horn - Key Of BbThe Jupiter JBR700S is a three valve Bb baritone horn with a silver plated body, a . 512" bore and a 9. 5" bell. It is a graceful, simple design whose focus is on tone and playability. This medium priced instrument offers the rich sound a band or orchestra needs from its low brass. 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