The Japanese magnetic constructor is packed in a plastic box with a lid, which, in turn, is the base for construction. Sockets for balls are in the corners of the rectangular cover. You can place 2 hemispheres in the center of the lid, and there are also 4 holes for installing rods. So everything is thought out.
![Itty Bitty Spider And His House Itty Bitty Spider And His House](https://buildkitpedia.com/wp-content/uploads/2023/07/jpmagnet_some.jpg)