Description:Simulated: Finger Strengthener is designed to simulate the guitar fretboard, making you feel like practicing with a guitar

Thumb positioning groove: Correct the left hand shape, adjust the relative position of the thumb and the four fingers, and help develop the correct left hand shape

Designed for:Hand Grip Finger Trainer is specially designed for finger exercise, silicone buttons, built in spring, no need to force

Light and Portable Pocket Guitar: You can practice anytime anywhere just with this small and tool in pocket or back bag

Gift:Guitar Finger Exerciser is suitable for both adults and children

Size Chart:19

9cmx4

5cm/7

83inchx1

77inchPackage Includes:1 Guitar Finger Exerciser1 manualNote:Please allow slightly errors due to manual measurement and different monitors