VariGrip Therapy is the only hand exerciser that has the ability to adjust the tension level in each individual finger, allowing the therapist to better track progress, and the end-user to improve dexterity, endurance, strength and circulation more effectively, minimizing the chance of straining weaker fingers and creating a smoother transition from one resistance level to the next. Originally designed for musicians, VariGrip’s Patented Variable Tension Technology allows the therapist to adjust each individual finger tension or resistance level. These adjustment knobs, along w/ special marks located on VariGrip, make tracking a patient’s progress easier, and allow a smoother transition from lighter to heavier tension levels. The ergonomic palm bar is extra wide to disperse pressure for maximum comfort, correct usage and includes an aggressive lip for a more stable fit than other palm bars that can shift over time when in use.VariGrip has retail-friendly packaging that allows the consumer to test the product without having to open bags or clamshells and includes full, multi-lingual instructions.