Features: Robot Eat Coins Bank,Stem Project For Kid,Wood Diy Crafts,Mechanical Model,STEM Educational Building,Diy Stem Robot The coin-eating robot uses the principle of dual-loop control motors. Put a coin in the hands of the robot, and the robot will raise its arms, open its mouth, eat the coin into its body, and then put it back into its arms to wait for the next coin to be put in. Manufactured by hand, using the digital unlocking mode of mechanical password lock, all code wheels can be turned to the correct position, and the lock can be unlocked by pushing down the button, without power supply or key, with simple structure and easy assembly. Children can put some of their own treasures, toy or pocket money when they are finished. Special fit design, no glues is needed. Just take the parts off the plywood, and you can start an intelligent and interesting assembly journey. Specifications: Material:Wood Color:wood Size:Approx.120x130x150mm/4.72x5.12x5.9in Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order.Due to difference between different monitors, picture may not reflect actual color of item. Package includes: 1xRobot Eat Coins Bank