The highly popular TV show "PythagoraSwitch" is now available as a product! This is a pull-back car featuring the "Pythagora Device," where Su carries the load when you put something on the bed. This item has been played with by a child, so please understand. * There is one white scratch on the bed. Please check the 7th image. * There is a transparent case, but it is partially damaged. Please check the 6th image. How to play: 1. Pull back Su. It won't move forward unless you put something on the bed. 2. Put the ball on... Let's think about how many balls it takes to make it run! 3. It starts running! The appropriate weight is 15g. Let's try putting different things on it! 【Set Contents】 Su's pull-back car, balls x 2 ■ Size: 126 (width) x 71 (height) x 46 (depth) mm ■ Target age: 3 years old and up ■ Manufacturer: Happinet Mini car Mouse Pull-back car E-Tele (Educational TV)