2-in-1 Construction Building Blocks Toy - This Super Cool 2-in1 construction building toy set includes 361+ pcs to build a dump truck or a propeller plane model, bring a fun way to learn and keep your little mechanic busy for hours while playing with their first creation with the help of the included step-by-step instructions. Life-like Creative Moving Functions - The car body and propeller simulate mechanical rotation, all-around operation, two splicing methods are available for kids to choose from, which can better exercise the kid's practical ability and thinking ability. Help develop fine motor skills, improves children’s concentration and hand-eye coordination. High-Quality & Safe DIY Toys - This STEM building set is made of only the best materials and the ultra-bright yellow and black design makes them more fun and engaging toys for children ages 8 and up. Each 361+ building part is durable and made of high-quality, safe, and harmless ABS plastics. It is the best choice taking apart toys for boys and girls age 6, 7, 8, 9, 10, 11, 12+ Years Old Easy to Assemble - The packaging box contains assemble instructions, each step is easy to understand, the corresponding parts and installation steps are explained in detail in the instructions. In the process of assembling build a dump truck model or a propeller plane model, it can exercise the kid's hands-on ability. The imagination has been strengthened. If several children are assembled together, it can exercise teamwork awareness. Wonderful Gifts for Kids - the Educational STEM set comes with an exquisite gift box, it is a great gift (Birthdays, Thanksgiving, Children's day, Christmas, Halloween, Thanksgiving & New Year) present Gift for 6, 7, 8, 9, 10, 11, 12 years kids, boys girls. Our STEM building toys are also a great way to build social bonds or strengthen your relationship with your kids. Ideal gift for Birthday Parties, Family Gatherings, or Outdoor Entertainment with Parents indoors or outdoor play.