Combine the high output and dynamic sound of steel with the smooth feel of nickel; perfect for rock and other kinds of music where the guitar needs to cut through. Our patented bullet-end creates a sonic coupling between the string and the bridge block, for rock solid tuning stability and increased sustain.Features The best of both worlds - our best-selling string alloy along with our patented bullet ends Nickel-plated steel combines the high output and dynamic sound of steel with the smooth feel of nickel Hex core construction creates more brightness along with a faster pick attack Fender's patented Bullet-end strings are the best strings for your Strat, creating a sonic coupling between the string and bridge block, for rock solid tuning stability and increased sustain. Made in the U.S.A.