BIG FAT BOOMERS! The string specialists at GHS bring a craftsman-like approach to each aspect of string design, from material selection to such intricate factors as core-to-cover ratio, winding direction, wire tension and alteration of the wire. GHS designs state-of-the-art strings that enhance the sound quality of all playing styles and instruments. These are the DYM - .013 -.056 with a wound third! • MFSKU DYM • UPC 737681030049