Resin TTL mouthpiece
NDA or TTL? if you are unsure about this, take the NDA. Historically it is more correct than the larger TTL which really is a compromise trumpet type mouthpiece to help the serious trumpet player to feel at home on the cornett. If you are a trumpet player but wish to try something more historic for the early repertoire then you would do well to consider taking both mouthpieces: order one as included in the price and then add the other as an extra. For the small additional cost you will have the luxury then of being able to find your way without pressure.