It strengthens the extensor tendon gliding, joint motion, and muscle coordination in the hand and forearm.
Easily change resistance by changing out the color coded resistance bands..Replacement Bands: 845-0203 Digi-Extend 845-0204-01 Tan Replacement Bands 845-0204-02 Yellow Replacement Bands 845-0204-03 Red Replacement Bands 845-0204-04 Green Replacement Bands 845-0204-05 Blue Replacement Bands 845 0204-06 25 Color Coded Bands, 5 of each color Digi-Extend Rubber Bands, 25Ct, Green, Medium Cando® Digi-Extend Replacement BandsDigi-Extend resistive finger exerciser provides isolated extension of all five digits and individual finger joints.