1 Piece Adjustable Hand Finger Exerciser Strengthener Span Trainer Large

Description:

Musical Instrument Adjustable Piano Guitar Hand Finger Exerciser Strengthener Trainer.
Adjustable finger spacing, practice freely, adjust according to each person's finger condition.
Visible physical force adjustment, you can see the change while practice.
Exercise finger strength and speed, improve finger flexibility.
Widely used for play guitar, piano, guzheng, ukulele etc musical instrument.

Size Chart:

Large: Length: Approx.204mm/8.03inch
Maximum Aperture: Approx.24.5mm/0.96inch
Minimum Aperture: Approx.20mm/0.79inch
Medium: Length: Approx.204mm/8.03inch
Maximum Aperture: Approx.22mm/0.87inch
Minimum Aperture: Approx.19mm/0.75inch

Package Includes:

1 Piece Finger Exerciser
1 Piece Screwdriver