ArtSkills Epic Lab Propulsion Racer Kit lets you or your child build 2 model racecars while learning about propulsion and kinetic energy. Test to see which attachment will propel the racecar faster, how far the racecars can travel, and if the cars can make it up the ramp. Try adding the weights to see if your results change! Customize you racecards with the included paints and paint brushes. Develop your child's interest in STEM fields while having fun! Details: Build and race your own model cars For ages 8 and up Contents: 8 Wheels 8 Spacers 6 Bands 4 Axles 4 Washers 3 Paint Pots 2 Paint Brushes 2 Propellers 2 Balloons Pop-Out Racecar Sheet Balloon Pump Balloon Attachment Ramp Measuring Tape Instruction Guide