The Standard Series are made out of high-quality phenol resin (plastic) and feature a design based upon the top grade Custom Series. They are extremely consistent in specifications and playing quality while offering excellent value for the price. The facing of this series is slightly shorter than that of the Custom Series making them easier to play and easier for beginning students to achieve a rich characteristic clarinet sound. The 4C makes it easy to obtain a well-balanced tone over all octaves. Ideal for professionals and beginners.