The PRS Signature Electric Guitar Strings are made with a reformulated nickel alloy that produces a louder and brighter tone than other strings. Sweetwater knows that tremolo bridges break strings; that's just a fact. These strings have a specially soldered ball end that's as break-resistant as it gets. Each nickel-plated plain string is drawn through high-quality dies while the bass strings' steel hex core is computer wound with a nickel wrap. This winding technique's pinpoint accuracy results in a comfortable playing tension and bright tone. With the soldered ball end and upgraded nickel alloy winding, PRS Signature Dave Grissom Electric Guitar Strings will sound incredible and still stand up to tons of bending and hard playing without any trouble.