OPERATION METHOD The motor has a worm gear that rotates a shaft to raise or lower arms A and B. The metal on the card completes the circuit that allows the motor to operate when you press the top button. The connecting mechanism raises the outer end of the bar while the inner end lowers. Conversely, it lowers the outer end of the bar while the inner end raises. 

CONTENTS Part A: Arm A, Part B: Arm B, Part C: Arm C, Part D: Arm D, Part E: Main body, Part F: Motor cover, Part G: Card holder, Part H: Key card, Part I: Card template (from the box flaps), Part J: Connector base, Part K: Connector cover, Part L: Motor, Part M: Battery cover, Part N: Connecting component, Part O: Metal plate, Part P: Double-sided adhesive tape, Part Q: Terminal caps, Part R: Small connecting component cover, Part S: Hexagonal plate, Part T: Black cable, Part U: Flat head screws, Part V: Screws, and Part W: Stickers. Instructions in Greek are included.