The STANDARD LINE offers the most requested gauges. It is recommended for standard tuning, while benefiting from the famous Metal SKULL STRINGS grain : very high trebles and very high harmonics, incomparable brilliance, precision, tuning hold and perfect resistance for extreme attacks !
The strings of the series are wound from a stainless steel, totally free of nickel (allergic people will appreciate), but composed of 17% chrome. Chrome reacts with the dioxygen in the air to form a protective layer - called passive layer - of oxide chromium on the surface of the string, isolating it from the surrounding environment and preventing any form of alteration.
Simply remove this tranparent layer before playing, using a dry cloth, to restore the sound of your fresh new strings much longer.
SKULL STRINGS, Last Longer !