Description Description: Suitable for Everyone: The hand exercise ball improves strength, power, and speed in the wrists, fingers, and forearms. It can undoubtedly the best choice for rock climbers, tennis players, and athletes, and it enhances the flexibility of fingers and wrists. Comfortable and Durable: The hand grip strength trainer is fit for small, and large hands, seniors, and teens but also ensures comfortable holding. The resistance of the hand grip strengthener is perfect for both men and women with different strengths. Hand Grip Exerciser: Strengthens Grip and Improves Dexterity: Hand exercise rings build strength in the fingers, hands, wrist, and forearms. Finger grip strengthener is designed with a ball shape, with nonslip tire texture, and stable gripping. Compact and Portable: Size: 6cm/2.36inch, small in size, and is easy to carry for training everywhere, like home, office, workplace, watching tv, travel, rest, etc. The grip strength ball is widely suitable for all teens and seniors, men and women. Great GiftIt a great training tool for rock climbing, playing musical instruments, basketball, etc. So it also can be used as a perfect gift choice for someone who is a sports, golf player, boxing, drummer, guitarist, pianist, and much more. Specification: Material: TPR Size: 16cmx5cm/6.30inchx1.97inch Package Includes: 1 Hand Exercise Ball Note: Please allow slightly errors due to manual measurement and different monitors.