Even though this is Yanagisawa's starting point with professional model curved sopranos, please don't confuse it with anything less than it's being the starting point for the best curved sopranos available today..It's ultra comfortable state of the art ergonomics, excellent intonation and superb quality of sound are all by products of Yani's attention to detail. This (saxophone only) manufacturer takes a back seat to none with quality control. The 991's body and keys are made of brass with a gold lacquer coating. Case, mouthpiece and strap are included.