Thank you very much for your interest in our product. [Product Description] Manufacturer: Yamaha Material: Yellow brass (silver-plated finish) Other: B♭ compensating. Valve system is 4-piston. Bell diameter is 300mm, bore size is 15mm (1st-3rd) / 16.8mm (4th) Accessories: Mouthpiece, original case [Condition of the product] This is a used item with signs of use and aging. ★ Adjusted at a musical instrument store in Tokyo. ★ No dents or rust. [Other] This is a used item, so please take a look at the photos and place your bid. If you are looking for a product in the same condition as new, please refrain from bidding. Also, please note that no returns or refunds are accepted. Thank you for viewing.