Dramatically improve your precision and stability. Constructed using Yamahas proprietary design the YCL450M Duet+ is manufactured using traditional grenadilla combined with ABS resin. Not only does this improve the durability of the clarinet but also produces an open sound with an excellent mid-range. Suitable for advancing musicians looking to step up onto a great quality instrument the Duet+ will carry any clarinet player to musical excellence. The adjustable thumb-rest can accommodate almost all hand sizes. This is a great advantage for student players as it enables them to comfortably develop a proper technique. For an added touch of luxury the YCL450M features silver-plated keys bell ring ligature and cap. Included with the clarinet is a lightweight carry case and a Yamaha 4C mouthpiece so you can start practising straight away Please note that wooden instruments are affected by humidity and temperature and as a result the wood may expand and contract which would affect joints such as the tenons and bell rings. If you do experience any difficulties please feel free to contact us and we will be happy to help.