DRAGON SKIN* Bass Strings feature DR’s K3* clear coating on the stainless-steel wrap wire to prevent dirt and perspiration from reaching the round core wire, preventing corrosion. The proprietary K3* coating, which is applied to all strings in the set, is ultra-hard and doesn’t dampen vibration like softer coatings do. The strings have more projection, fewer unwanted overtones, greater clarity and articulation than uncoated strings.