@yitong8888: First of all, the gripper can help us improve the blood circulation in our hands. We have a lot of acupuncture points and meridians in our hands. By using a grip, we can stimulate these acupuncture points and meridians, thus promoting blood circulation and relieving hand fatigue and soreness. Secondly, the gripper can help us strengthen the muscle strength of our arms. We have a lot of muscles in our arms. By using a grip, we can exercise these muscles to improve the strength and endurance of our arms.#Fitness #arm #ad #strong #fyq