Stomp, Chomp, Stomp, Chomp - watch these creatures come ALIVE with new Beasts Alive Building Sets from K'NEX! Use the 200+ classic K'NEX parts to build, Bronto, a stomping dinosaur.Once built, turn on the motor and watch it come ALIVE right before your eyes! The set includes two additional building ideas that can be built one at a time.All K'NEX rods and connectors are made in the USA.Perfect building experience for kids ages 7+.Requires 2 "AA" batteries, not included.