.* These single strings are the perfect replacement when that string clicks and you're not ready to replace an entire set of guitar strings.* The highest string on a guitar is almost always the first.* It makes sense to have several backup strings to replace it as and when it breaks, as replacing an entire set can prove to be both impractical and expensive!* These strings offer exceptional sound and longevity.* Stainless steel; Steel core; Proprietary anti-corrosion coating; Nickel-plated gold-plated ball.* Perfect for a damaged cord without the whole set. Specification:Material:SteelModel:E-1st,B-2nd,G-3rd,D-4th,A-5th,E-6thColor: As shown in the pictureSize:E-1st (0.30mm/0.012in); B-2nd (0.35mm/0.014in); G-3rd (0.60mm/0.024in); D-4th (0.7mm/0.027in); A-5th (0.89mm/0.035 in); E-6th (1.02mm/0.040in); Package Included: 1 x StringNote: Please refer to the measurement. A small measurement error is acceptable within the normal range. There may be a slight color difference due to monitor, camera or other factors, please refer to the physical item.