Check the listing for details. Pro-Arte Violin Strings Set 4/4 Medium J56 4/4 M D'Addario. Condition: New. Listed at 44.79 USD. D'Addario Pr0-Arte Violin Strings 4/4 Scale - Medium TensionJ56 4/4MPro-Arté synthetic core violin strings have a warm, mellow tone. They are less sensitive to humidity and temperature changes, and break in quickly. Pro-Arté strings are manufactured at a lower tension in order to maximize bow response, tonal blend, and playability. These violin strings are the perfect choice for players seeking a warm, dark tone.Sized to fit 4/4 scale violin with a playing length of 13 inches (328mm), these medium tension strings are optimized to the needs of a majority of players.4/4 scale violin with a playing length of 13 inches (328mm)Medium tensionSynthetic core produces a warm, mellow toneLess sensitive to humidity and temperature changes, and break in quicklyAll D'Addario strings are designed, engineered and manufactured in the USA to the most stringent quality controls in the industry