Feature:1. Suitable for guitar learners, piano learners, saxophone learners, ukulele learners, ball sports learners, etc.2. This finger extension tool will help you quickly open your fingers to increase the span for your convenience.3. The finger extender can stretch the ligaments to increase the strength of the fingers and make the fingers more flexible.4. The finger extender of musical instrument has adjustable loop distance, can adapt to various pointers, and has a circular design.5. This perfect four-hole circular design allows the fingers to receive even force on all sides during exercise.Specification:Item Type: Musical Finger ExtenderMaterial: Metal + plasticColour: Black.Package List:1 x Finger Extender1 x User Manual1 x Spare Screws