This Czech Republic-made BBb Tuba features 4 piston valves, a .787″ bore and a 17.7″ bell. It stands 38.58″ tall and weighs 21 lbs. It is a full 4/4 size instrument with Nickel-silver valve casings, a brass clear lacquer and Miniballinkage. Comes complete with hardcase and silver-plated mouthpiece.