Produce captivating tunes in every strum and pluck with the Everlast 80 20 Medium Light Acoustic Bronze Premium Guitar Strings. Reinforced with nanotechnology these Ernie Ball Strings are provided with utmost protection against harmful elements. Key Features The Everlast Guitar Strings are able to remain durable for years thanks to its acoustic coating which is 1 000 times thinner compared to the conventional ones available in the market. Likewise integrated with nanotechnology the inner hex core and outer trap wire of the acoustic guitar strings are shielded from dirt grime moisture and sweat. The Medium Light Acoustic Guitar strings are made from 20% zinc wire and 80% copper