5-Key Adjustable Finger Strengthener | Solid Brass Core 3–8.5 lb | Guitar Piano Rehab Stress Relief Style:Grey Wide Finger-Span Keycaps: The soft-pull

Wide Finger-Span Keycaps: The soft-pull keycaps feature three raised contact points and a flat

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Magnets: 20 precision-grade magnets in engineered arrangement

5-Key Adjustable Finger Strengthener | Solid Brass Core 3–8.5 lb | Guitar Piano Rehab Stress Relief Style:Grey Wide Finger-Span Keycaps: The soft-pullAbout This Item Five keys. Five fingers. One precision brass mechanism per key, individually adjustable from 3 to 8. 5 pounds of resistance. Press, release, repeat. The MFX5 finger strengthener is the most mechanically sophisticated finger trainer availablea full brass internal mechanism in each of the five keys, a flat palm rest design that keeps your hand in the correct playing position, and soft pull keycaps with three raised contact points that