Item Description High-quality hand exerciser with spring-loaded finger piston technology Isolates and strengthens each finger individually for better overall coordination Improves user control of bats, racquets, clubs, guitars, and other sports equipment Fits conveniently in your pocket; lets you strengthen fingers anytime, anywhere Heavy tension strength of 9 pounds per finger for strong hands The Grip master Pro isolates and strengthens each finger individually, helping you improve your overall strength, endurance, and dexterity. A few daily workouts with the Grip master Pro and youll enjoy better control of a baseball/softball bat, tennis racquet, or golf club, with each finger working in seamless unity with the others. Youll also find a ton of other uses for the Gripmaster Pro, including playing guitar or violin, rock climbing, bowling, target shooting, martial arts, yoga, or even relieving stress while clicking a mouse or gaming for hours on end. To keep things interesting and to accommodate certain uses, the company recommends several different exercises, including the "fingertip pinch," "flatfist," "powergrip," "wristflex," and "thumbpinch," most of which are explained on the Grip master website. Best of all, you can work out anytime and anywhere with the Grip master Pro, which fits neatly in your pocket when not in use. Tension 5 lbs Package Included: 1pcs Note:We Dont Offer Color Choice.