I think our 3 year old finds this a ho-hum activity since she knows her colors quite well and doesn't have a lot interest in this activity. She certainly prefers the blank side so she can design it herself. I think it's a good color-learning activity for those needing to learn colors.
If your son is into Ninjago, you need this. My son is six years old and we have some other sets. The description states," for 9 and up", but my son has no problem putting the sets together. I help if he gets stuck, but for the most part he can put most sets together himself. We have not opened yet. It will be a Christmas present, but came nicely packaged and I did check to make sure all the pieces are there. I can't wait for him to open it.
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