bottleboom dinosaur toys, take apart toys with electric drill,stem building learning set toy for kids 3 4 5 6 7 years old boys girls christmas birthday gifts bottleboom about products: assembling toys can promote kids image cognition, thinking development, and exercise practical skills. the electric drill can switch between two different parts, making low-speed work safer. the color box comes with assembly instructions to make the assembly easier. after the assembly is completed, the head, hands and feet of the dinosaur can be moved. different shapes can be formed. allow children to increase the fun of the game by moving their parts. it is also a stem educational toy that can improve kids' cognitive ability, hands-on ability, and three-dimensional conception ability.