This is our showroom demo Tuba Exchange Model 2052SG. It has a few very minor scratches and dings from being played, as well as a couple of minor finish flaws in the plating on the bottom bow and the main slide. It is a compensating 4 piston Euphonium with a 12" bell, large shank receiver, graduated bore and main tuning slide trigger. It is silver plated with gold accents. The price includes a mouthpiece and case. Bore is 0.590"-0.670".