Discover the mechanisms behind robotic movement as you watch your Insectoid crawl, wriggle and walk! Set contains Body cover, body, leg link connector, motor with gear, large gear with crank, small gear, 2 terminal caps, 3 connecting caps, 2 washer screws, 9 screws, battery cover, short leg link, long leg link, 2 anntennas, front leg, back leg and detailed intructions.The Insectoid is apporximately 28cm in length with antennas. (Also required but not included crosshead screwdriver and 1.5V AAA battery). Age: 8+ years. Contains small parts.