The Ernie Ball Paradigm strings are guaranteed by Ernie Ball to be the most break resistant strings on the planet. Paradigm strings demonstrate the incredible advancement in string technology combining an industry leading level of strength and life with the highly regarded tonal characteristics and feel of Ernie Ball strings. With ultra-high-strength steel cores and a plasma-enhanced wrap wire that is Everlast treated these Skinny Top-Heavy Bottom 7-String Paradigm strings provide you with all the benefits and no compromises.