Augustine spectra electric strings are light nickel-plated strings featuring cultivation and completion of the famous Segovia sound. Choose from extra-light (.009-.042), light (.010-.046), medium (.011-.048) and heavy (.012-.054). The light set features: · E1 - .010 inch. - 0.25mm · B2 - .013 inch. - 0.34mm · G3 - .017 inch. - 0.43mm · D4 - .026 inch. - 0.61mm · A5 - .036 inch. - 0.86mm · E6 - .046 inch. - 1.17mm.