Designed with quick bow response and ease of use in mind, D'Addario's Prelude cello strings are the educator's preferred choice for student strings. Due to their unique blend of warm tone, affordability and durability, they are ideal for the brand-new cellist picking up a bow for the first time, and the more experienced student in the high school string orchestra. D'Addario leverages centuries of string-making experience and advanced computer-controlled winding technology to bring you the most durable, consistent and long-lasting strings. With its solid steel construction and uniquely-designed sealed pouches, Prelude strings have an unparalleled protection from the elements that cause corrosion. Unaffected by temperature and humidity changes, the strings wear well and can stand up to a student player's usage. All D'Addario strings are designed, engineered and manufactured in the USA to the most stringent quality controls in the industry. Scaled to fit a 4/4 size cello with a playing length of 27-1/2 inches (700mm), these medium tension strings are optimized to the needs of a majority of players. Since 1905, D'Addario has been providing artists and players with the tools they need to perform their magic. As musicians ourselves, we have the unique ability to engineer products that inspire other musicians. The D'Addario family's vision, creativity, passion and tradition have made us the world's largest musical instrument string manufacturer. We put our family's heart, soul and love for making music into every string and instrument accessory we create, and we never stop inspiring performance.