Frogwill Portable Pocket Guitar Practice Tool Gadget 4 Fret Model For Beginner 100% New & High Quality Made from durable material Small size, portable tool Four frets for practicing chords and scales, Great tool for training your hands, Necessities for guitar beginners Ideal for practicing wherever you go, which without bothering anyone Improve skills on cars, airplanes, the office, school, dinner table, and virtually an other places