The SUPER ALLOY 52 SERIES® appeals to contemporary bassists because these strings are both bright and tarnish-proof. The design of the outer wrap contains a high-iron content (48%), which increases the strings’ magnetic properties, thus enhancing its electronic response. The wrap’s alloy also includes a high content of nickel (52%) preventing the strings from tarnishing. Unlike coated strings, the composition of SUPER ALLOY 52s never compromises tone and clarity.