Features: It adopts to a one-piece moulding design, so it won't hurt when you grab it. Product: Luminous decompression ball toys for adults, can relieve stress and anxiety. Suitability: These stress balls are suitable for adults only. Quantity: 4 per pack. Stress-relieving: A great tool for reducing everyday stress and anxiety. 4 Pack Of Luminous Stress Balls | Living Social