ERNIE BALL 2922 M-STEEL SLINKY

M-Steel Hybrid Slinky Electric Guitar Strings are made of M-Steel, short for Maraging Steel, a superalloy used in high-stress applications for the aerospace and defense industries. The wound strings are comprised of a patented Super Cobalt alloy wrapped around a Maraging Steel hex core wire, producing a richer and fuller tone with powerful low-end response