elmers products scientific explorer rocket car kit. this exceptional series of home science kits is based on the nationally recognized great explorations in math and science gems program pioneered at uc berkleys lawrence hall of science. acclaimed for excellence as a teaching resource. this 19 inch rocket car can speed up to 200 feet on a single fueling powered by nothing more than baking soda and vinegar this package contains plastic bottles template paper stock die cit axle support three plastic wheels two aluminum rods rubber tubing red plastic film silver duralar fueling module balsa wood nose cone 10in 25.4cm weather stripping precut clear tubing and an instruction guide. recommended for children ages 9 and up. recommended for use under adult supervision only. imported.