Portable Pocket Guitar F Chord Trainer Practice Tools Guitar Finger Exerciser for Beginner Guitar Accessories

Features Pocket Guitar F Chord Trainer Finger Strength and Expansion Exerciser For Beginner It is hard to play F chord it also can exercise your fingers when you practice the F chord and it is helpful for other Chord play LED error notice if your gesture is not right or finger strength is not enough the LED wont be on Specification Item Name F Chord Trainer Model DL GC01Power Supply 1 CR2032 batteryItem size 18 x 4 6 x 4 2cmNet weight 88gColour BlackMaterial plasticPackage included 1 x F chord trainer1 x CR2032 battery1 x English manualNote Light shooting and different displays may cause the color of the item in the picture a little different from the real thing The measurement allowed error is 1 3cm