Set of high quality strings for classical guitar, offering fantastic sound. Pitbull has developed high quality strings using the finest American steel wire. Pitbull produced the Gold Series with the material sounding the best. With Pitbull's technology background, the Gold series has an excellent balance of tension and tone with maximum sustainability. PITBULL SILVER series strings are produced by using American-made silver-plated coil that has been wounded more than general. These process takes longer for production procedure and is ideal for almost any classical guitar. PITBULL GOLD is 100% handmade and higher quality version of PITBULL SILVER. PITBULL GOLD series are easily tuned, has a perfect intonation and last longer. High Tension, Thickness: .0285, .0327, .0410, .030w, .036w, .044w