Excellent electric guitars strings that show Martin is more than just Acoustic! Darco Electric strings are meticulously constructed of authentic nickel and steel at a price that allows guitar players to keep a spare set of strings in their gig bag and a few extra sets in the van, the studio, and at home. Darco offers guitar players that pre-gig-peace-of-mind or heading-to-the-studio fresh set string change. The Darco line of electric strings promises quality, tone, and value in every pack. They are designed for the pros and priced for the working musician so every guitar player can afford to change their strings as often as needed to keep their guitar sounding new all the time. If you take away the bells and whistles, the magic coatings, the chrome-plated alloys and all the markups that make strings cost more, what really makes a great guitar string is superb tone, strength, clarity, and reliability.