Helps kids to intuitively understand the principles and characteristics of recoil movement helps to develop kids' scientific awareness and exercise kids' hands-on ability. An ideal gift for kids or student as an educational toy. Manufacturered by Angel3292. A perfect birthday gift for your kids or friends. Science Experiment Children Assembly Model Toy Baby kids early educational toys Kids Developmental Toy Educational Puzzle Game Toy Kit Music English color words Learning Toy Kids Adult Intelligent Toy children Early Learning toys Easy to assembly non-toxic material made of eco-friendly and durable.