specification:Name:1 Set 60CL (.011-.050) Steel Acoustic Guitar Strings.These products are made of metal.These Guitar Strings are so useful that you can buy them to your lovely guitar.Suitable for the common size of the guitar.This Guitar Strings quality are good.Feature:Size: E - 0.011B - 0.015G - 0.023WD - 0.030WA - 0.040WE - 0.050WW = Wound StringPackage include:1 Set 60CL Guitar String