Yamaha FS-220 light gauge acoustic guitar strings, with the size of each string specified. - Brand: Yamaha - Model: FS-220 - Gauge: Light Gauge - String Sizes: 1E: .012, 2B: .016, 3G: .025, 4D: .032, 5A: .042, 6E: .052 Thank you for viewing. Long-term storage, unopened. The package has some dirt. Only those who understand this, please.