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Package Included: Stress Ball*1 Specifications: Squeezing and pulling help relieve stress or worry, promote sedation, and help reduce tension. Non-toxic and odorless, safe to use, recommended for children over 4 years old Bright colors, can exercise the baby's ability to distinguish colors Description: Product information Color: rainbow/solid color Product size: diameter 11/9/7/6/5cm Product weight: 300/150/65/45/30g Use age: 4 years old and above Material: TPR Function: grasping, squeezing, pinching; exercise while training the baby's hands-on ability; it can also release pressure for adults