Ernie Ball John Mayer Silver Slinky Guitar Strings 10.5-47, 3-Pack TinJOHN MAYER SIGNATURE SILVER SLINKYS Silver Slinky Strings are the result of an extraordinary partnership between Ernie Ball and John Mayer. Each string has been meticulously engineered with specific gauges and core to wrap ratios that meet Johns exacting specifications. THE PERFECT BALANCE OF TONE, TENSION & FEEL John's gauges he plays to create his signature sound (10. 5 13. 5 17. 5 27 37 47) Reinforced Plain Strings provide greater tuning stability