DR Strings Dragon Skin+ Coated Accurate Core Technology 6-string phosphor bronze acoustic guitar strings provide an unparalleled playing experience for acoustic guitarists. Packed with patented technology, these strings upgrade both the core and wrap wires to sound full, balanced and loud. Accurate Core Technology creates grooves on the core to cradle the wrap wire, allowing the strings to ring out fully. A micro-thin coating provides long life while feeling like an uncoated string. Designed to feel and sound better, Dragon Skin+ strings are unlike anything you've played before. The difference is real.