Impeccably designed for the modern clarinettist. Crafted by precise milling machines in the USA the Reserve Evolution EV10 from DAddario is a mouthpiece you can rely on. Perfect for a wide variety of musical styles the EV10 is ideal for expressing every nuance of your performance. Boasting a wider chamber and an enhanced baffle the Reserve Evolution will give you stability to play with confidence. Once combined with a medium-long facing and an optimised beak shape the EV10 will give you a flawless performance. Made to the Highest Standard All DAddario mouthpieces are designed in conjunction with top engineers and professional musicians. Unlike other clarinet mouthpieces the EV10 mouthpiece is milled from hard rubber rather than traditional moulding. By using precise computer-controlled milling machines enables all Reserve mouthpieces to be consistent allowing you to play with confidence. Specifications Pitch: A=441hz Tip Opening: 1.08cm Facing Length: Medium-Long