The Thomann CL-17C Synthetic C- Clarinet ensures a fabulous playing experience as you touch its Boehm key system. Its key mechanism features 17 keys and five rings that allow you to play various harmonic notes on the music sheet with comfort. The pear design optimises the sound projection so that the tone reaches the audience with maximum accuracy. This clarinet has a thumb rest that allows you to grip it with convenience. Additionally, there is a ring given to the thumb rest, which allows you to attach a belt. The key mechanism is plated with nickel that resists corrosion and lasts for a long duration.