So I received my model today, and the plastic is pretty strong.... In the big chunks. I don't think strong and flexible (polished) was a good choice for the material. I couldn't put the pistons together, and most of the ball joints snapped. I feel like the model should be available in something a bit higher quality, such as frosted ultra detail. I was really excited about this model, but sadly, because of the plastic, it did not work.