Description Product Description It includes a custom mouthpiece TR14B4GP who finished with pure gold plating attached mouthpiece ... luxurious thickness. To realize the tone with a bell ... rich and spread, adopted a gold brass bell of one up. Diameter 123mm. Silver plating specification ... is represented characteristics of the instrument itself directly, finer nuances silver plated finish put out. Soft and bright sound is attractive. Case ... included case is TRC-896ll.