Yamaha YAC 1292 Standard Series 5C Tenor Saxophone Mouthpiece (YAC1292) Made out of high quality phenol resin (plastic) Design is based upon the top grade Custom Series Easier to play, and easier for beginning students to achieve a rich characteristic saxophone sound 1.8mm tip opening Provides a somewhat richer tone with greater variety of colors than 4C and excellent flexibility and response. Popular with soloists