Awarded the Kids Design Award 2019! QBI (Cube-I) is a toy that lets you combine rail blocks freely to make cars run. Because they are magnetic cubes, the cubes stick together, and the cars run smoothly! It's a very fun toy where you can create various routes yourself. My child was playing with it. Please refrain from purchasing if you are concerned about minor details. There is no noticeable dirt on the main body, but the box is partially torn.