【Durable, safe and washable】The squeeze ball toy is made of a thick thermoplastic rubber (TPR) outer layer with small balls inside. These balls are very durable and can be squeezed repeatedly. No harmful chemicals are added. The ball has a sticky texture that provides a richer sensory experience and ensures that it stretches correctly as the title guarantees. | 【Gentle, spiked and fun fun】 The stretched pressure ball with DNA colored water beads and spikes can provide mental and physical stimulation in a safe, non-toxic toy, which is perfect for restoring focus and relieving stress or anxiety. | 【Sensory stimulating toy ball】 This kind of stress-reducing toy for adults and children is small enough to be used at home, in the car, at work or on the road. | 【Relieve wrist fatigue】For those who use computers or do more manual work, this is also a great hand pinch ball exercise. LISM