This string set includes 4pcs strings, which is compatible with 4 string banjo instrument. 2 strings are made of stainless steel and 2 strings are in coated copper alloy wound. Long lifespan, great performance, stable vibration, sustained sound, which adds more fun to performers. These 4pcs strings measure about 0.009 inch, 0.016 inch, 0.023 inch and 0.030 inch in diameter. Great replacement for your broken, dirty or old banjo strings. Features - Made of high-quality stainless steel ( A / D string ) and coated copper alloy ( G / C string ). - Long lifespan, great performance, stable vibration, sustained sound. - The set includes 4 pcs steel strings. Compatible with 4 string banjo. - 4 PCS strings are in different sizes. They measure about 0.009 inch, 0.016 inch, 0.023 inch and 0.030 inch in diameter (0.23mm, 0.41mm, 0.58mm, 0.76mm). - Excellent tools to replace your broken, dirty or old banjo strings, banjo beginners and performers. Specifications - ColorSilver - Material: Steel - A string: Stainless Steel .009" 0.23mm - D string: Stainless Steel .016" 0.41mm - : Coated Copper Alloy Wound .023" 0.58mm - C string: Coated Copper Alloy Wound .030" 0.76mm Package list: 4 x Banjo Strings