The JTU700S features stainless steel pistons for easy action, plus a size which makes the sound easy to control for the beginning tuba player. It includes a detachable leadpipe, valve body and bell for easy repair. The tighter wrap and compact size still offers a wide dynamic range and rich tone. 3/4 Size, Silver-Plated, 3 piston valves, .661 bore, 14.4 bell, ABS molded case (KC-82A), Commercial Ground Shippable