Jupiter 5080 Quantum Series Marching BBb Tuba, Silver Stainless Steel Pistons have remarkably smooth, fast action for improved agility and playability The Left-Handed Tuning Trigger on the marching tubas simplify the first valve tuning process by adding a conveniently placed trigger 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