color and create your own inflatable paper race car with 3D Colorables® - Radical Race Cars. It's as easy and fun as color, inflate and play. Start by coloring your race car with crayons, markers or colored pencils. Then inflate your radical race car with the included straw. And the wheels are simple to put on, they just snap together. And away you go! Your set of 3D Colorables comes with 2 paper cars 8 wheels and 2 inflating straws. The race cars measure at 8 inches by 4.5 inches. Colorables can be reused too; just deflate them with the straw for easy storage.