Come and Check Our Promo Solutions.Help recover from injury. Grip exercise, training finger, hand and wrist muscles. 5 balls of different colors have different resistance levels. You can choose what colors you want. Multi-step movement from soft to hard. Improve grip, hand endurance, dexterity, muscle tone and gross motor skills, and effectively relieve the wrist, fingers and wrist. Great for all kinds of people. These handguard grip enhancement tools are aimed at your forearms, fingers and wrists to enhance hand strength and improve grip. Unlike most exercises, you can take these enhancement tools with you and exercise anytime, anywhere. Use them at home, in the office, or when traveling, turning downtime into an exercise class. 2 1/6 "L x 1 7/9" W Pls check inventory and detailed info with us before placing your orders.