Cleartone Bluegrass Guitar Strings - LT Top Heavy Btm - 7423 - 12-56 - 2 Pack Bluegrass Gauge (Light top, Heavy bottom): .012 .016 .025 .036 .046 .056 Made with phosphor bronze It won't flake off with hard playing, nor will it feel slick or slippery to your touch. Super-high tension winding over a hex-core is used to maintain tuning consistency throughout your performance. Package Contains 2 Packs of Cleartone Strings!