Product Description Tite-fit electric guitar strings utilize a nickel-plated steel wrap wire wound on a round core Wire to produce a fatter sound. This classic construction makes tite-fit a great all-around string that works for a range of styles and genres, including rock, blues, metal and jazz. The use of the finest core and wrap-wire materials ensure this classic design meets modern performance standards. TITE-FIT Electric Guitar Strings utilize a nickel-plated steel wrap wire wound on a round core wire to produce a fatter sound. This classic construction makes TITE-FIT a great all-around string that works for a range of styles and genres, including Roc From the Manufacturer TITE-FIT™ Electric Guitar Strings utilize a nickel-plated steel wrap wire wound on a round core wire to produce a fatter sound. This classic construction makes TITE-FIT™ a great all-around string that works for a range of styles and genres, including Roc