I got this model as a Christmas present for my boyfriend and his little boy who is 6 years old. The model came with a missing part, but when I contacted Overstock, they have quickly resolved the issue. The number to contact NSI customer service is 1-888-425-9113 if in case anyone is missing a part. The engine actually works and my bf and his son had a fun time building it. :)
Ordered this as a birthday gift for my turning 8 year old grandson. He could not wait to get the box opened & get going on some of the different activities. He actually took it along to the park that day & started w/the dinosaur dig activity. He was happy for hours working on some of the activities all by himself & others he did need guidance & help. All in all I think it is a great gift for young children that love or have an interest in science.
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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