TPR Heart/Star Shaped Stress Ball Hand Grip Fitness Ball

1. Made from eco-friendly TPR material, non-toxic, safe to use.
2. Help improve fingers strength and prevent stiffness.
3. Help strengthen forearms muscle.
4. Relieve stress by squeezing repeatedly.
5. Portable and light, can be carried to anywhere with no difficulties.
6. Modern and colorful look make it a good accessory.
7. Waterproof, easy to clean.
8. Different hardness to choose for different level of finger strength.