This was the worst construction kit I've ever seen. You will need a knife or a sharp tool to help make all of the wooden holes big enough to fit into each other because after punching the pieces out, they don't begin to fit easily into one another. In fact, my 8 yr. old wasn't strong enough to put most of the pieces together. It took almost two hours to complete because of the tiny, confusing directions and the fact that I had to be the one to actually fit the pieces together. Now that it is finished, we don't dare touch it or it will fall apart!