These miniatures are made of hard plastic. My box’s contents had some light flash, but nothing that a model knife couldn’t fix. The wheels were very difficult to put on the cannon carriage, but I managed to make it work. Something to note is that the cannon barrels are filled, so you may have to drill the barrel if you want that extra bit of detail. As for the miniatures, they had no issues. However, the linstock carried by four of the miniatures do feel quite breakable. Overall both the cannons and miniatures were good models with great detail.