Feature: 1. Good Resilience: Do not eat, do not touch the water ball with sharp objects. Can be pulled and pinched, high resilience, not easy to deform, make you have fun. 2. Stress Relief: When you're feeling down or angry, squeezing it can help you release bad emotions and relieve stress and anxiety. Suitable for daily life, work, family party, etc. 3. Perfect Gift: Simulated brain shape, unique and lifelike appearance, attract children's attention, wonderful gift for children, no leaks even when stretched hard. 4. Portable Design: Suitable for children and adult. Light and small, easy to store and carry, can be easily put into your bag, suitable for home, office and travel. 5. TPR Material: Brain squeeze ball is made of excellent TPR material, safe and eco friendly, non toxic, elastic and soft, skin friendly, comfortable to touch, durable. Specification: Item Type: Brain Squeeze Ball Material: TPR Soft Rubber Size: Approx. 6 x 5.5cm / 2.4 x 2.2in Appropriate Age: 3 years old + Characteristics: Odorless, eco friendly and non toxic, stress relief toy. Package List: 12 x Brain Stress Relief Toy Note: 1. This brain squeeze ball smells so good, you might feel a little hungry. But it's not food so that you or your child can't eat it.2. Please allow slight error due to manual measurement. Thanks for your understanding.