Elixir Nanoweb 14077 Coated Bass Guitar Strings Medium (gauge 45-105), deliver the bright, lively tone and feel of traditional Nickel Wound strings. The flexible, strong, yet micro-thin polymer tube coating prevents contamination and corrosion from collecting in the windings of the wound strings, yet give a more natural feel and more durable life than ever before. This Medium set gives a little more bass response than a lighter gauge. In Light gauge, the string thicknesses are 45, 60, 85, 105.