Specification: Product Name: Solar System Stress Balls Material: PU(Polyurethane) Color: As Shown Quantity: 10ocs Diameter: 6.3cm/2.5in Sun Diameter: 7.6cm/3in Package Size: 28 x 22 x 8cm/11 x 8.7 x 3.1in(L x W x H) Package Weight: 0.15kg/5.3oz Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please allow slight dimension difference due to different manual measurement. Thank you for your understanding.Package Including: 10 x Solar System Stress Balls Safe PU Materials: The outer space balls are made of premium PU material, durable and sturdy, soft and comfortable. Safe and non-toxic, BPA-free, with a smooth edge and smooth, harmless for kids. Stress Relief and Anxiety Reduce: These solar system balls help you relieve your stress and anxiety. When you hold these balls in your hands, you would feel like the whole world in your palm, and when you squeeze the ball over and over again, help you quickly forget your worries. Early Educational Toy: The solar system planet bouncy balls are not only a novelty toy for stress relief but also a nice model for players to know more about the universe. They are realistic and vivid for careful observation, can arouse kids' interest in universe exploration. It is also helpful school supplies to teach astronomy. Lightweight and Portable: Most solar system bouncy ball is about 2.5 inches in diameter, but the sun is about 3inch in diameter. The small size makes these planet stress balls easy to hold, store and carry. 10pcs Planet Stress Balls: The package has 10pcs solar system galaxy stress balls, including Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Earth, Moon, and Sun. It can be ideal party favors and gifts for your family and friends, suitable for outer space parties, astronaut-themed parties, birthday parties, baby showers, etc.