Ready, set, WHOOSH! Just add water and start pumping…when enough air pressure builds up, this action-packed jet car blasts off with a big, exciting splash! From adjusting water levels to increasing pump speed, there are tons of ways for kids to experiment with making this amazing car travel nearly 100 feet—learning about force and motion with every exhilarating launch! Jet car measures 13" in length, features steel axles and rubber wheels, and includes a pump.