The Rubber Band Propeller Car Kit is the perfect STEM learning tool for kids and students! Each kit includes all the supplies needed to create 10 rubber band propeller cars. Have fun while learning by exploring science and engineering concepts like propulsion, inertia, potential and kinetic energy, and more. Experiment with the angle of the wheels and the propeller to change how the car drives. Comes with clear, high-res, colorful instructions written in plain English. Created by STEM Inventions: Kits and supplies made for hands-on educators in classrooms, after-school enrichment, summer camps, libraries, and at home who value DIY STEM education