The Denis Wick Trombone Small to Large Shank Adaptor is a great solution for musicians wanting to use a small shank trombone mouthpiece in a large bore instrument. It also allows baritone horn mouthpieces to be used with euphoniums. Silver plating ensures that the mouthpiece is hard wearing and corrosion resistant. Perfect for multi-instrumentalists its a quick and convenient solution for wanting to use your favourite mouthpiece across multiple instruments.