content: My son (almost 8) and my husband (an engineer) sat down to put this together. Many of the holes were either drilled too small or, even worse, drilled in the WRONG PLACE. Some pieces are cut the wrong size and just don't fit!! What a terrible WASTE OF MONEY. There is no way to make it work without major drilling and sanding and then re-painting.My son is so disappointed -- he was really looking forward to putting this together.