The fender 1250 ultracore guitar strings are for electric players who need consistent tuning clear tone and reliable feel. Built around fenders reinforced ultracore high carbon steel core these strings are designed to hold pitch more securely during bends aggressive picking and longer playing sessions. That added core strength also helps reduce breakage so you spend less time restringing and more time playing. The hex core construction keeps tension balanced across the set which makes intonation more predictable up and down the neck.a premium nickel plated steel wrap gives you a familiar response with added clarity and definition working well for clean passages and driven tones alike. Colour coated ball ends make string changes quicker especially handy mid restring and the light .009 to .042 gauge keeps the feel comfortable for fast lead work and expressive bends. Supplied as a convenient 3 pack this set is made in the usa and ready for regular use.