Ernie Ball M-Steel Electric Guitar Strings are made of a patented super cobalt alloy wrapped around a maraging steel hex core wire, producing a richer and fuller tone with a powerful low-end response. M-Steel plain electric guitar strings are comprised of a specially tempered steel for maximum fatigue resistance. The electric plain strings also utilize a patented winding of steel around the ball end that reduces slippage, breakage and stays in tune better than conventional plain strings. Gauges: 0.09, 0.011, 0.016, 0.026, 0.036, 0.046.

Features:
• Made of a patented super cobalt alloy wrapped around a maraging steel hex core wire
• Comprised of a specially tempered steel for maximum fatigue resistance
• Gauges: 0.09, 0.011, 0.016, 0.026, 0.036, 0.046