Miraphone Tuba Mouthpiece TU21 This standard mouthpiece is ideal for brass bands and is safe for beginners to use. This is a new, unused item that was purchased previously and stored, with no shank scratches. - Manufacturer: Miraphone - Standard: TU21 (Old standard C3) - Cup Inner Diameter: 31.2mm - Depth: 41.1mm - Bore: 8.0mm - Shank Size: 13.3mm - Weight: 21.1g - Length: 9.8cm - Price: ¥36,740 (tax included) #Tuba #Bass #Mouthpiece #Miraphone