Wind up these little bumper cars and watch the fun begin. Each car has an anti-fall feature which keeps them from plummeting off of a table top. Select a surface for your battle, like a book cover or box top. Wind them up, place them down facing each other and let them go! Whose car has the power to push the other off the surface? No batteries needed, just a twist of the gear and you're ready to go. Set of two: one red and one blue. Each measures 2" x 1-5/8". Ages 3+.