Propeller Racer: Green Science
Learn about the science of wind power and the value of green energy with the 4M Propeller Racer. Construct a propeller-driven race car and watch it blaze a path across any smooth surface. This kit includes a propeller, top cover, battery case, motor, wheels and frame. Detailed assembly instructions included. Requires two AAA batteries (not included). Recommended for ages 8 years and up.
