Euphonium/Trombone Mouthpiece Randefalk R3S Cup Inner Diameter: 26.00 mm Cup Outer Diameter: 39.50 mm Bore Size: 7.20 mm Cup Depth: 37.00 mm Length: 83.00 mm Backbore: 10.70 mm Large Shank (Tenor) Finish: Gold Includes a presentation box and an original drawstring bag. The current standard specification has a separate cup and shank, but this is an integrated type. Randefalk is very popular recently, especially in brass bands. It is not distributed domestically, so please consider this opportunity. Manufacturer's product introduction page: https://randefalkmusic.com/collections/moutpieces/products/euphonium #randefalk #ランデファルク #r3s #ユーフォニアム #トロンボーン #euphonium #マウスピース #ブラスバンド