- Model：MC-09
FEATURES
* Lifetime-Warranty spring structure with copper nut and screw
* World First 5 pressing-keys exerciser to practice finger-interval.
* Visual adjustment, you can see the change while practicing.
* Intensify your practice for specific finger with exclusive "keyhold" feature.
* Widely used for finger exercise in guitar,piano or orchestral instruments in playing
SPECIFICATIONS
*Strength:3~8.5Pounds
* Press Kyes:5
* Key Holders:2pcs
* Color:Orange/Gray
* Package:1Pcs/BlisterCard
