Build wrist, hand, and forearm strength with the YangChen gyroscopic power ball. Its compact design is convenient for home workouts, office breaks, warm-ups, and sport-specific conditioning.
The built-in automatic elastic starter helps get the ball moving with a simple push in the arrow direction. As the internal gyroscope gains speed, rotation provides progressive resistance for an engaging grip workout without batteries or a power cord.
Push the starter in the direction of the arrow, then rotate your wrist to maintain movement. Suitable for adults who want convenient grip and forearm training, including office workers and athletes involved in climbing, bowling, badminton, and similar activities.