KNX1342 Features: * Set comes with 122 K"NEX parts, primarily micro rods and connectors to build a motorized robot * Combines with flash for a combo build (each set sold separately) * 4 of 4 in robo battlers series * Ace moves by creeping along on four legs * Requires 2 "AA" batteries, not included * Standard K"NEX parts made in the U.S.A * Ages 7+ * Not for children under 3 years old Disclaimer: * Warning: Choking hazard. Small parts.