Chord Buddy Guitar Learning System is the easiest and most effective guitar learning system available! As soon as the Chord Buddy is properly attached to your acoustic or electric guitar, you will be making music! Within a few weeks, youll begin removing some of the tabs and making the chords on your own. Material: Plastic Size: 23 * 19 * 4.5cm (L* W* H) Weight:130g Package including 1 x Teaching Aid