Donner Acoustic Guitar Strings, Light Acoustic Guitar Strings Phosphor Bronze Coated 1 Set of 6 Hex Steel String 11-50 DAS-20L High Quality Material - Constructed with phosphor bronze wrap wire, stainless steel and steel hardness of brass wire ball end, Donner guitar strings have good elasticity and are not easy to deform. Anti-oxidation coating significantly protects strings against common corrosion and extends life span Hold Tune Stable Sound - Donner acoustic guitar strings offer a long lasting, warm, bright and balanced acoustic tone with an expressive, vibrant presence. Sound can be transmitted to resonance boxes very well High Carbon Steel Hex Core - With hexagonal steel core vibration balance and advanced winding technology, Donner guitar strings sets will help you achieve stable and amazing performance Widely Applicable - Suitable for various types of resonance boxes such as D, J, OM, etc. No matter they are of mahogany, rosewood or maple material, Donner strings can show you a satisfactory dynamic and comfortable feel. Every string is labeled to let you string up your guitar easily Affordable Replacement Strings without Compromising Quality - If you play a lot, need to change strings frequently and concern about budget, Donner acoustic guitar strings set is the most cost-effective strings for a beginner to enthusiast