ChordBuddy Chord Buddy Guitar Teaching Aid Practice Tool - UNIT ONLY ChordBuddy UNIT ONLY! Does not come with any books, DVD or other media. True Tune TT-05 chromatic tuner is included! PLEASE measure your guitar neck before ordering. If your neck is over 1 7/8" you need the "classical guitar" version. If it is less than 1 1/2" the ChordBuddy will not work on your guitar. Extremely quick progression with a proven, effective, system, suitable for all ages. This version of the ChordBuddy does not currently work on left-handed, 12-string, classical or half-sized (childrens) guitars. Start playing from the minute you attach the Chord Buddy to your guitar.Does not come in any retail packaging.