Make learning more fun stimulate their curiosity and creativity. Easy to assemble: Including Mini Screwdriver and Detailed instructions to assemble much easier and convenient. (AA batteries are not included) Manufacturered by SIM&NAT. Great Gift: Create unique STEM Toys for 6-12 years old to DIY school science project Education STEM Project Kit: 2 Kits of Electronic Assembly - Toy Robotic & Aircraft set are designed to enhance children's Science Technology Engineering and Math skills. Science Experiment Kits: Improving kids manipulative ability. Made kids learn basic principles of simple circuit motors mechanical and engineering to stimulate their curiosity and creativity.