Compared to all the educational toys that I can offer, sometimes incredibly expensive for what they contain (lego, feel covered!) Range buki pulls out of the game. It is regrettable that the number of parts to allow some different constructions (s) from those specified by the manufacturer. But it's like Legos, precisely: by combining the boxes, you end up a box interesting tool. Like another reviewer, I regret that the solar panels are so low: it only work in direct light. Apartment, basically, it's one or two meters in a favorably exposed fenètre, not in winter: ca limit a little ...
