Build this motorised robotic barrier gate to stop intruders into your room.\nIt\u2019s a cool mechanical science gadget. The barrier gate is 64cm once constructed.\nRequires 1.5V AAA x 2 battery.\nContents: Arm x 4, Main body, Motor cover, Card holder, Keycard, Card template (from box flaps), Joint base, Joint cover, Motor, Battery cover, Joint link, Metal plate, Double-sided adhesive foam tape, Terminal caps, Small joint cover, Hexagonal plate, Black wire, Washer screws,: Screws and Stickers.\nAlso required but not included in the kit: 2 x 1.5-volt AAA batteries, a small crosshead screwdriver.\nAbout the range:\n\n-The KidzLabs range features a range of science kits designed to teach the basic principles of STEAM, including astronomy, biology, chemistry, optics, magnetism and much more.\n- Enrich fundamental understanding of scientific principals through creative toys that inspire learning whilst having fun.\n- Enhances children\u2019s development in hand-eye coordination, creative .