Jupiter JHR1000MS 1000 Series Marching French HornThe Jupiter JHR1000MS Bb Marching French Horn features a . 468 inch bore and provides powerful projection. With the strong sound of the Bb side of a double horn, the JHR1000MS makes the upper range of marching music easier to play and more dramatic in tone color. 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