SYOSI Stress Ball Portable Squeeze Stress Relief Balls Strengthen Hand Exercise and Relieve Tension Hand Exerciser Grip Strengthener Stress Relief, 5PCS

✅Stress Reliever: Science research has shown that occupying your hands with a minor task - such as squeezing a rubber ball - allows your brain to relax and stop being focused on what’s stressing you. These balls help promote a sense of calm, reduce stress / anxiety and can increase focus / attention.
✅Multifunctional: Stress Ball on a String, smoosh, squeeze, stretch, pull, toss, bounce - they will immediately return to their original shape. Squeeze as a stressball for finger strengthener, physical therapy exerciser, or hand strength trainer.
✅Size: (5.5 cm x 5.5 cm), 5 hardness levels: softest (yellow), soft (orange), medium (red), hard (blue), hardest (green). You can choose the appropriate hardness level as necessary. It is also ideal for "progressive training" which gradually raise the hardness level gradually in the beginning with soft, next medium.
✅Material: The stress ball made of polyurethane. Retain shape. Ultra durable. Non toxic, strong, durable and safe - great stress balls for adults. Makes for a great gift!
✅Small and Lightweight: The exercise-balls is very small. Easy to store in your purse, briefcase, school bag, even your pocket. You can play it anytime anywhere when you need something to do with their hands. Suitable for 8+ age.