I have the building blocks for Christmas away because I found it just beautiful and wanted to give no 0/8/15 stones. They are very much recorded, fascinated by mirrors, bells, pattern, holes and the bright colors. Unfortunately, the colors are also the only shortcoming of these blocks, because it dissolves very quickly. The stones have -spuren after just 4 weeks already significant scratch and "gnawing". I think that's a shame, but does not detract from the fun.