Introducing the all-new HT Series! Inspired by over a decade of electric guitar string research Ernie Ball has incorporated the principles and insights that contributed to the development of Cobalt and M-Steel Slinky, resulting in a new material-based innovation for pickups. This all-new patent-pending HT (Heat Treated) pickup technology brings with it a new series of HT-equipped instruments, including a Cutlass HT, StingRay HT, and a Sabre HT. Tap to learn more.