Hand Grip Finger Trainer Strengthener Adjustable Power Training(orange) Redmiter@The product is shipped based on the color or size of the main image of the product page.Hand Grip Finger Trainer Strengthener Adjustable Power Training Home Fitness Equipment Exerciser Piano Guitar Finger Trainers|Hand GripsHand Grip Finger Trainer Strengthener Adjustable Power Training Home Fitness Equipment Exerciser Piano Guitar Finger TrainersFeatures:Small and exquisite, lightweight and portable, easy to carry.You can safely practice your finger resistance, tension and flexibility.Can help improve finger speed and sensitivity.5 pressing keys to practice finger-interval.Precise design for spring structure with copper nut and screw.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.:Type: Finger ExerciserModel: MFX5Color: OrangeGender:For all people Material: High quality non-slip silicone/PlasticStrength: adjustable 3-8.5 LBSSize: 105x66x23mmAdjust ment strength of pure copper inner core (increase the strength clockwise, decrease the strength counterclockwise).Notes:Please allow 0.5-1 inch error due to manual measurement.Package Included:1 x Finger Tension Trainer