Check the listing for details. D'Addario Pro-Arte Viola String Set, Medium Scale, Medium Tension. Condition: New. Listed at 66.29 USD. D'Addario Pro-Arte Viola String Set, Medium Scale, Medium Tension Authorized dealer over 40 years USA. - Gary Ritter Strings Shop - South Lyon, Mi. Shipping outside lower 48 states USA and HI. - AK. - PR. will be calculated. Pro-Arte Viola String Set, Medium Scale, Medium Tension Pro-Arte synthetic core viola strings have a warm, mellow tone. They are less sensitive to humidity and temperature changes, and break in quickly. Pro-Arte strings are manufactured at a lower tension in order to maximize bow response, tonal blend and playability. The perfect choice for players seeking a warm, dark tone. Sized to fit medium-scale viola (body length 15-15 3/4 inches) with a playing length of 14 1/8 inches (360mm), these medium tension strings are optimized to the needs of a majority of players.. Medium-scale viola (body length 15-15 3/4 inches) with a playing length of 14 1/8 inches (360mm) Medium tension Synthetic core produces a warm, mellow tone Less sensitive to humidity and temperature changes, and break in quickly All D'Addario strings are designed, engineered and manufactured in the USA to the most stringent quality controls in the industry