Aquila 4CH Nylgut Series, String set for Cuatro Venezolano, 4-String set, Normal Tension Set for BF#DA tuning, Gauges (mm): 0.76, 0.52, 0.65, 0.82, Made of nylgut, Similar sound like natural gut, Defined, singing sound with excellent response, Excellent acoustic properties with wide tonal range, Short stretching phase and high tuning stability, Made in Italy