1、Good Performance: This folk guitar strings replacement has good performance, colorful bead head, loud, clear and transparent tone, rich overtones, uniform winding strength, even force, stable resonance. 2、Vacuum Molecular Nano Coating: This guitar string uses vacuum molecular nano coating technology to form a protective barrier between the string and the environment. Because the entire string is coated, the spacing between the windings can be protected, giving the string an excellent tonal well and maintaining a sleek feel with longer lasting tension and elasticity. 3、Sturdy And Rugged: This acoustic guitar string is made of excellent phosphor bronze and high carbon hex steel core material, which is sturdy and abrasion resistant, not easy to be damaged, and has a long service life. 4、Compact And Portable: This acoustic folk guitar strings are small in size and light in weight, which makes it very convenient to carry around with you and use, and easy to replace. 5、Wide Application: This guitar string replacement has a wide range of applications, which can be used for daily practice, stage performance, music recording, etc. for replacing old and damaged strings.