Ez-Fret Guitar Attachment, Eliminates Finger Pain, 110 Chords Available, Fits Full Sized Acoustic Guitar, L/H OK For those who have given up playing the guitar due to finger pain, string buzzing, or the need to develop callouses when fretting the strings directly. Distance between strings 1 and 6 directly over third fret should be between 1 1/2" and 1 5/8". Fits full sized acoustic guitar with string length of 25" to 26", left handed OK. NOTE: Does not fit classical guitar Over 110 chords, full scales of "C" and "F" available Simple rugged design, relatively easy to install.