Kids take their math skills for a spin—with hands-on counting cars that really roll! Kids just grab a car…look at the numeral and number word…and count out the matching number of passengers into the “seats.” Plus, each car fits exactly 1-10 passengers, so the set is self-correcting—for no-fail practice! The set includes 10 durable plastic cars with rotating wheels and 60 passengers that snap securely in place; largest car measures 8 1/8" in length.