Features:
World First 5 pressing keys to practice finger-interval.
Precise design for spring structure with copper nut and screw, and the product has a lifetime warranty.
Visible physical force adjustment, you can see the change while practice
Intensify your practice for specific finger with exclusive "key-hold" feature.
Widely used for finger exercise when you play guitar, piano, bass, ukulele, saxophone, violin or orchestral instruments
Strength: 3~8.5 pounds
Press Keys:5
Max Stored Buttons at one time:2
Color: Orange
Size: Approx. 105 x 66 x 23 mm (L*W*H) |
