The parts aren't well made. I have tried a few other products like the rocket launcer and the kaleidoscope,they were excellent. But,with this particular model,too much of effort was required to put them together. The holes were not precise,the rubber bands were not of good quality(too loose). I am quite disappointed with this particular activity kit. I expected it to be really good in terms of craftsmanship. But,this kit is not up to the mark in terms of fittings. The parts do not fit well. Its a struggle to get it together. In terms of understanding, it might work,nonetheless, the finishing isn't great. I am not all that happy with the kit or my expectations were quite high considering their other kits were really really good.
Update-the turn function fails to work. Only grab and lift work. Also,the cardboard seems to split up due to the struggle to fit in.