Pocket Guitar Chord Exerciser Solo Six Guitar Exerciser With Screen Display for Beginner Practice Specifications: Type:Chord trainer Material:plastic Packaging Size:31.9*5.9*4.5cm Color:As the picture show Weight:0.255kg Place of origin:China Use:Chord Exercise Package included: 1x A tool to adjust tension of strings Note: 1.Please allow 1-3mm differs due to manual measurement. 2.Due to the different display and different light,the picture may not reflect the actual color of the item. Thanks for your understanding. Key Words: Pocket Guitar Chord Trainer;