Find the art in your life.Features:100% Brand new and high quality!This product matter who exercise、 performing arts and the use of playing a musical instrumentErgonomic design、 comfort grip、 easy to useTo improve fingering reaction beginners、 including flexible fingers efforts.Specifications:Material: copper(Internal ) and ABS(shell)Color: Gray and black; Orange and blackSize: 17*13.6*3.5cmPackage included:1 x Plastic Guitar Piano Fingers Training Tools Recover Finger Hand Grip TrainerSolving your any problems.