The forearm exerciser is designed to help you improve grip strength and create stronger, leaner muscles with progressive plate training that suits your strength and fitness level.and, wrist, and forearm strength are essential to your daily life whether youâ??re an athlete, an outdoor adventurer, climber, or just hauling groceries inside from the car. But without the right equipment, it can be hard to target these muscle groups and build lean, healthy strength. Thatâ??s why we developed the Wrist Wrippper, an easy-to-use wrist and forearm strengthener that makes building muscle and toning your arms easier to do no matter where you go with customizable, progressive workout options that suit your lifestyle or athletic needs.