Developed working with Yasuhito Sugiyama, Principal Tuba of the Cleveland Orchestra, the SHII-CLE features a design which is a modification of the classic SHII. A larger inner diameter, slightly deeper cup, larger throat, and subtly lighter weight combine to offer a vibrant & colorful tone with quick response. - the manufacturer California Residents Only: WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov