D'Addario Prelude Viola String Set, Short Scale, Medium Tension Solid steel core optimized to create the warmest-sounding student strings available Educator's preferred choice for student strings due to their unique blend of warm tone, economy, and durability Short-scale viola (body length 13-14 inches) with a playing length of 13 inches (330mm) Medium tension All D'Addario strings are designed, engineered and manufactured in the USA