This is a product you create yourself using magic blocks. As it is an overseas product, some blocks may be misshapen, but there are slightly more blocks included than stated, so there should be no problem with construction. However, due to the large number of pieces, we cannot check them in advance, so please be aware of this before purchasing. The instruction manual had some folds, etc., from the time of purchase, but it does not interfere with construction. Why not try creating a masterpiece in your spare time? We will give you a 1000 yen discount if you purchase it together with the KUROMI 30000-piece set. Thank you for your consideration.