Jupiter 4 Valve 7/8 Size BBb Tuba Compact Model 482L Lacquered Brass Body is produced using state of the art technology to ensure an instrument of the most accurate scale and playability Stainless Steel Pistons have remarkably smooth, fast action for improved agility and playability The Wood-Frame Case with Wheels boasts a classic look that offers excellent instrument protection whether home or on the road Key of BBb Lacquered Brass Body