Included content: You will receive a large black and white guitar finger extender, which is easy to use, no need to use other tools to adjust the distance between the rings, and keep practicing to make your fingers more flexible to play the guitar  the guitar expander tool is mainly applied for finger practice for beginners of musical instruments, quickly extend your fingers, increase the span of the fingers and the finger strength, to help you better play your favorite instrument  Finger extension can effectively improve the strength of fingers, palms and wrists. It is used in rock music and is also popular with guitarists, bassists, pianists, and violinists.  The finger cots are made of high-quality and environmentally friendly materials, with strong toughness, not easy to damage, reliable quality, and can be used for a long time, practice, and use anytime, anywhere.  Warm tips: it is recommended to use 5-10 minutes as a group, and you can repeat the exercise after the fingers are completely rested; It may be a little uncomfortable to use them at first, but don't get discouraged, through a few days of practice, you will find a significant improvement    Universal Finger Expander for Musical Instruments, Adjustable Guitar Training Auxiliary Artifact Finger Trainer Piano Finger Splitter Suitable for Guitar/Bass/Ukuleles/Mandolins/Piano/Banjos Beginner. The exerciser can effectively and quickly help you learn to master the technique of the instrument.  size:Length 20cm  Material:ABS+Metal  colour:Black + White    Package Contents:  2 x Guitar Finger Expander    Only the above package content, other products are not included.  Note: 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.