What’s included: 1 x Ernie Ball 2221 Regular Slinky 10-46 Electric Strings 1 x Ernie Ball 10-46 Cobalt Electric Strings 1 x Ernie Ball 10-46 M-Steel Electric Strings The Ernie Ball Electric Guitar String Tone Pack is the perfect way to experience three legendary electric guitar tones. From the world's #1-selling Original Slinky strings, featuring classic, balanced tone, or the Cobalt Slinky Strings, providing higher output and superior clarity, to the M-Steel Slinky strings, which are the loudest, most expressive strings ever created. Three tones, One Pack. Famously Slinky. Made in the USA Gauge 10-13-17-26w-36w-46w All three sets in this tone pack will be gauge 10-46.