When the toy is pulled, it makes a seductive sound and brings more fun to your child. It is a great learning toy that encourages children to get up and exercise. Interactive toys can improve children's hand, eye and brain coordination ability, finger flexibility, control baby's paradigm transfer ability, and items necessary for children to learn and grow. Safety Materials Toys are made of high-quality materials, healthy, environmentally friendly and durable. It is safe to use and does not produce any harmful substances. Rounded edges and smooth, eco-friendly waterborne coatings are safe and non-toxic. Bright colors stimulate children's interest. Use common geometric patterns and colors to maintain different choices for children to play and make their eye-hand coordination and color and shape recognition more creative for infants and children over 3 years old.