I bought these sticks for my 4 year old daughter who loves to build. I wanted to save money (35 300 euros) by not buying the original of a famous brand but I should have. These are of very unequal quality and narrower than the "real". Often badly cut, not very smooth, buildings become so quickly loose that does not encourage creativity and patience ... The storage card is not adequate: I had to quickly transfer them into a plastic tray. So I do not advise ...