This is a light gauge treble string. Augustine strings are designed to give you endless possibilities that will best suit your particular needs. These are the original Augustine guitar strings, an intrinsic part of the classical guitar revolution this century. Albert Augustine, an instrument maker, found himself pressured by none other than Andres Segovia to manufacture and sell nylon guitar strings. He did so, insuring the rise of a new generation of concert players and lending his own part to the cultivation and completion of the famous Segovia Sound.