Usage Tips:Relieve Finger Pain: The guitar learning tool has round button design eliminates the finger pain of pressing strings. Keep your fingers comfortable in the early stage of learning guitar. Boost Chord Learning: Each color of chord guitar learning system represents a chord. Playing specific chords by pressing buttons with corresponding colors. Guitar Beginner One-Key way easier to understand and remember guitar chords. Durable Material: The guitar beginner one-Key chord is made with durable ABS material, which is smooth to touch. Soft rubber on the clips keep the tool chord tool from slipping off the guitar. Suitable for Crash Learning: Guitar buddy is a fast learning tool for those who want to acquire guitar-playing skill in a short period of time. No matter young or old, anyone can play a beautiful song with chord tool. Prepare for Long-term Play: The fingering is the same as traditional fingering, which won't affect your basics of finger technique. Taking the tool as a booster of learning and be mastery of guitar playing in the future. Material: ABC+PC Product Weight: 65g Product Size: 7.8 x 7.8 x 4 cm Fits Guitar Size: Guitar with Fret1 width within 43-45mmBeginnersPackage including: 1 x Chord Practice Tool 1 x User Manual