Description: 【Effortless Learning】: Designed specifically for beginners, this Guitar Chord Presser allows you to easily play without much experience 【Guitar Chord Training Helper】: This Guitar Aid Chords Learning Tool can simplify your learning process, improve chord conversion efficiency, and achieve a smooth playing experience 【Comfortable Pressing】: Replace the need for left hand string pressing with this tool, providing a comfortable grip that improves your practice results 【Correct Hand Position Training】: Improve your finger strength and develop proper hand positioning by training vertical fingertip pressure 【Easy Installation】: This Learn Guitar Chords Device is suitable for 36 to 41 inch acoustic guitars. Easy to install without complicated tuning adjustments, making it wonderful for quick setup and use Size Chart: 12.5cmx5cmx3.5cm/4.92inchx1.97inchx1.38inch Package Includes: 1 Guitar Chord Presser Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.