Description: - 【Ergonomic Design for Children】: Specifically crafted for children aged 5~13, this piano hand posture corrector features a mini and compact design that fits comfortably in small hands, promoting proper finger positioning while playing - 【Comfortable Material】: Made from pp material, this training tool offers a comfortable grip that is resistant to deformation, ensuring long term use without compromising on comfort - 【Adjustable Fit with Straps】: Piano finger trainer equipped with adjustable straps, the corrector allows for easy customization of tightness to ensure a secure yet comfortable fit that doesn't constrict the hand during practice - 【Breathable and Sweat Resistant】: Hand corrector designed with breathable heat dissipation holes, this product ensures maximum comfort by preventing sweat build up during extended use, making it ideal for prolonged practice - 【Innovative Egg Grip Simulation】: The center of the finger exerciser simulates holding an egg to support the palm and open up the thumb index finger , effectively correcting hand posture while playing piano or other instruments Specification: - Material: PP Size Chart: 4cmx6cm/1.57inchx2.36inch Package Includes: 2 Kids Piano Finger Trainer Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.