HI-DEF NEON Color Coated Electric Guitar Strings are available in a wide variety of luminescent color options designed to give your stage presence a little extra pop, especially under UV black lighting. They feature a hexagonal core wire and a silver-plated nickel-plated steel wrap on the wound strings. All strings include the neon colored K3 coating, delivering longevity, more projection, fewer unwanted overtones, plus enhanced clarity and articulation.Features: 1) K3 Coated applied to the wrap wire is extra hard to maintain string brightness while extending life 2) The coating eliminates unwanted overtones, helping projection, clarity and articulation 3) Dayglow coating is luminescent under black lights or uv lightsGauges: 9, 11, 16, 24, 32, 42 LightSpecification Statement: Hexagonal Core Wire on a Ball End with a Luminescent Blue Coated Silver Plated Nickel Plated Steel Wrap Wire