Ernie Ball Coated Slinky Electric Strings combine the latest technological advances in string manufacturing. All wound Ernie Ball strings are treated with a micro-thin layer of enamel that prevents decay and corrosion up to five times more than uncoated sets. In addition to treating the wound guitar strings, Ernie Ball has taken it a step further by reinforcing the plain guitar strings with a patented winding of titanium wire. Titanium"s inherent strength prevents string breakage, string slippage, and is proven to keep your strings in tune better than conventional plain strings. Ernie Ball Coated Slinky strings maintain the feel and sound of uncoated sets, combining the added protection with the vibrant tone Ernie Ball customers have relied on for over 50 years. Perfect match for those who want to avoid guitar string breakage. 09-11-16-26-36-46 Titanium reinforced Treated with a micro-thin layer of enamel to prevent decay and corrosion