The Ernie Ball Paradigm strings are guaranteed to be the most break-resistant strings in the world. Paradigm strings showcase the incredible advancements in string technology by combining an industry-leading level of strength and longevity with the highly regarded sound characteristics and feel of Ernie Ball strings. With ultra-high-strength steel cores and a plasma-treated winding wire that is treated with Everlast, these Regular Slinky Paradigm strings offer you all the benefits without any compromises.