I bought this for my convertible car 4 year old son who loves Robocar Poli. I received the Ouaps brand and the quality is quite good. There is an arm that disconnects if it takes too much on it but it is very easily remboite (this happened only 2 times). My son has struggled initially to transform the vehicle into a robot and vice versa but after a few tries and a little help, he comes very well now. He also the other characters in the rescue squad and he spends hours playing with it!