Professional Finger Exerciser with 5 Pressing Piston Keys Hand Strengthener Training Fingers Tension Dexterity

Features:
With its unique 5 pressing piston keys design, the finger exerciser helps you to practice your fingers and hands, so as to maintain and increase the strength and dexterity, expand finger-interval.
Each piston key can be taken out individually and adjuated the tension according to your requirement, suitable for finger exercises on various musical instruments such as guitar, piano or orchestral instruments.
High Quality : the piston keys bottom comes in spring structure with copper nut and screw; the pedestal is made of transparent PMMA for visible adjustment and long durability.
The ergonomic design and resilient molded rubber pads boast comfortable hand feeling and good skid-resistance, both make your conditioning workout more effective.
A useful exerciser for Arthritis Therapy and GripFinger Strengthening, whether for Rock CLimbing Training, Instrumental Performing Training as well as Trigger Finger Training.