This tool It helps with extending your for playing the Guitar//Ukuleles/Mandolins/Piano/Banjos/Saxophone and all other keyboard musical instrument.This finger extender is mainly used for adult beginners of musical instruments to practice finger extension and stretching, allowing you to quickly extend your to play instruments such as guitar//ukulele/piano/banjos/saxophone.This musical instrument finger trainer is fixed with screws, which can be adjusted according to the span of your to fix it to a very suitable position.The guitar finger stretching trainer is made of upgraded ABS material. It is strong, not easy to break, small in size and easy to carry. It is a perfect training artifact.You may feel a little uncomfortable when you first use training, but don't be discouraged. I believe that in just a few days of practice, your will become more flexible and stronger.Model Number: Finger ExtensorType: Othersize:22 x 2.3cmMaterial:ABS resincolour:blackPackage Contents:1 x Finger expander 2 x PoleOnly the above package content, other products are not included.Note: Light 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.