Ernie Ball Earthwood Phosphor Bronze Acoustic Guitar Strings are crafted from a wire composed of 92% copper, 7.7% tin, and 0.3% phosphorus, which is wrapped around a tin - plated hex - shaped steel core wire. These strings showcase a light orange and gold hue and deliver a warm, mellow, and ringing sound with outstanding clarity. Features: Material - 92% copper, 7.7% tin, 0.3% phosphorus wire; Gauges - .011.5, .015.5, .022w, .032, .044, .054 (Light).

Using these Ernie Ball Earthwood acoustic guitar strings is easy. Just unwind the old strings from your guitar and replace them one by one with the new ones. Make sure to tune the strings gradually to avoid breakage. When it comes to maintenance, wipe the strings with a clean cloth after each use to remove sweat and dirt, which can extend their lifespan. Also, store your guitar in a dry and cool place. Be careful not to over - tighten the strings as it may damage both the strings and your guitar. With proper use and care, these strings will keep delivering that warm and clear sound for a long time.