Hi-def neon multi-color colored electric Guitar strings: heavy 11-50 Designed to give your stage presence a little extra pop, especially under UV black lighting All strings include the neon colored K3 coating, delivering longevity, more projection, fewer unwanted overtones, plus enhanced clarity and articulation Perfect tool for learning and teaching guitar- 6 strings, 6 colors 11, 14, 18, 28, 38, 50