Ernie Ball Super Slinky M Steel Electric Guitar Strings 9 42 Gauge

Superior magnetic attraction providing the most expressive strings ever created. Dynamic frequency response with increased output and added strength. Super Cobalt alloy wrapped around a Maraging steel hex core wire, producing a richer and fuller tone with powerful low end response. Plain strings (E, B, G) are made from specially-tempered steel for maximum fatigue resistance and are reinforced at the ball-end with a patented winding of steel. Made in California, USA with the finest and freshest materials.