"DR Strings' Black Beauties black coated electric guitar strings represent the latest in coated guitar string technology! DR’s K3 Technology coated wire is pre coated before winding for extra life and extra protection. All six strings are protected for improved performance and corrosion resistance. DR's Black Beauties strings offer players a superior coated string without sacrificing the crisp tone, clarity, and volume of traditional strings.
The K3™ Coating is the first coating that players report, ""sounds as good or better than uncoated strings."" DR's new, remarkable, proprietary and patented #8487168 K3™ Technology Coating is the first coating that makes no apologies and no excuses for not delivering sound equal to uncoated strings. Players tell us these strings have more volume, less unwanted overtones, greater clarity and articulation then standard, uncoated strings. Yet, they provide the same protection "