This is a SELMER SUPER SESSION F soprano mouthpiece. It's a standard mouthpiece for jazz and pop music. Opening: 1.45mm Table length: 24mm It has been test-played for approximately 3 hours and is in very good condition. There are no noticeable scratches on the table or rails, and it shows little signs of use, giving the impression of being almost new. It had a slight thickness to the sound and gave the impression of stable playability. Comes with the original box and pouch.