This is ABS resin clarinet which produces a warm and pulsating tone, making it sound like a wooden clarinet. Apart from its sound, it has a matte ABS resin body which gives it a similar looks with that of a wooden clarinet. It also has silver keys plated with nickel and has 65mm barrel with adjustable thumb rest. It is indeed a state-of-the-art clarinet. The Yamaha YCL-255 Standard Bb Clarinet also comes with a new adjustment thumb rest with neck strap ring that allows players to improve on their playing technique. Its neck strap ring accommodates players with different hand sizes; that is both children and adult hands.