Yamaha YRB-302BII Bass RecorderThis is an ABS bass recorder with a design created to mimic the qualities of an expensive hand crafted wooden model. It features very accurate intonation, a Baroque fingering system and an arched windway. Key: F System: Baroque Windway: Arch Toneholes: Double Body Sections: 4 Material: ABS resin Others: F F# double keys Accessories: Cotton case, Fingering chart, Recorder cream, Cleaning rod, Neck strap.