The undeniable advantage of this box is the screwing-unscrewing device which gives the child the impression of being a truly great! (Do not forget to order the 6 AA batteries not included!) The manual is very well done, the only small problem remains that the parts are not numbered bags (yes you'll quickly get bad habits with Lego for example). The models are diverse and every child should be able to find more to his liking. This box (which may require additional purchases in order to have built several models ready to play), is a very nice gift for 8-10 years, maybe more .... A toy that transcends time, with which the child really play.
