I bought it as a gift for my son on NG, as a result I went through the whole machine, because at the very beginning it did not want to transform and froze in the semi-twisted state. the gears are not made of plastic, but of some kind of "snot". YANDEX! Do you even check who trades on your site? A 100% test of the assembled model was not carried out in production, or a marriage is deliberately sent.