Developed with Taylor for use on the GS Mini Bass, these acoustic bass strings feature EXP-coated phosphor bronze wrap wire over multifilament cores to deliver long-lasting tone, projection, and playability. Designed and developed with Taylor specifically for use on Taylor GS Mini 4-String acoustic basses with a string scale length of up to 25.5 inches EXP Coated phosphor bronze for warm, bright, well balanced acoustic tone and 4 times more life Environmentally friendly, corrosion resistant packaging for strings that are always fresh Made in the U.S.A. for the highest quality and performance String Gauges: Phosphor Bronze Wound .037, .055, .062, .090