1、The guitar aid can play common extended chords, 7 chords, 9 chords, and stay chords. 2、One color corresponds to one chord, and the 6 rainbow colors are simple and easy to remember. 3、30 kinds of chord pressing methods are converted into memory of six colors. 4、Introduce the concepts of "universal chords" and "series", so that novices can play songs quickly and smoothly while learning by themselves. 5、The guitar aid can improve the efficiency of chord conversion, make playing more smoothly, train your fingertips to exert strength vertically and cultivate the correct hand shape. 6、The guitar aid is made of durable ABS materail, smooth to touch. And theback clamp prevents the tool from slipping off the guitar. 1 x Guitar Aid Item Type: Guitar AidMaterial: ABS+PCColour: Black