Strengthen your hand and fingers with the heavy resistance of this grip strengthener.Can be used for exercising the fingers and hand muscles, to make the players have more outstanding performance.A few daily workout with the exerciser and youand 39 ll enjoy better control of a piano, guitar, violin and any musical instrument which requires accurate tension by fingers.Also suitable for sports like rock climbing, bowling, target shooting, martial arts, yoga, or even relieving stress while clicking a mouse.The ideal way to maintain the strength and flexibility of the hand to prevent injury.Type: Finger ExerciserMaterial: Copper and ABSButton Number: 5Intensity Adjustment Range: 3 lbs - 8.5 lbsFeatures: Useful, Five-Finger Practice Tool, Large Adjustable Extent, PortableSize: 104mm x 65mm x 23mm or 4.06" x 2.54" x 0.91" (Approx.)Notes:Due to the light and screen setting difference, the itemand 39 s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Finger Exerciser Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store