Pneumatic  Engine

Nice

Montage intéressant et amusant fonctionne bien.

I gave this as a gift. He loved it. Was very fun to put together. I just wished I gave a balloon along with it.

This is an excellent product! I ordered it for my 17 yr old son, who plans to be an engineer. I wanted one that was both challenging, yet reasonable. This fit the bill perfectly. He is even now sitting and diligently working on it. He's been at it for about three hours now and almost done. The one negative thus far is that the holes for the toothpick were a bit tight so he employed pliers to help. I love how absorbed he is! I will be buying these again- soon

Very nice kit! You really need really follow the directions and make sure you are pushing all the pieces to make them fit as they are very tight. As long as you follow the measurements in the instructions carefully, you should have no problem. The wood is very sturdy as a little thicker than I am used to. It look a little bit of effort to get the pieces out but they came out pretty cleanly. The toothpicks that hold the pieces together (they work like pins or bolts) were a little tough to get in but they stay really well. I found that using side cutters to trim them after placement gave a nice flush finish. They give you extra toothpicks as well incase some break or you mess up. Overall a really fun little kit. I can't wait to start the Ugears tanker truck I bought!