Selmer S90 200 Alto Saxophone Mouthpiece. Excellent Condition. Open box. Mouthpiece is made of hard rubber. There are no scratches or ligature marks on the mouthpiece. It is in the original packaging. Includes a Selmer mouthpiece patch. This is Selmer's new and latest design for the S90 series. It has a longer facing length of 24 mm vs. the previous version of S90 that had a 22 mm facing length. The tip opening is 1.65 mm. The mouthpiece has a square chamber. The S90 is a versatile. It is mainly a classical mouthpiece but is flexible enough for many other musical styles. The mouthpiece does not include a ligature or mouthpiece cap.