the pen is a flat top, is a full pen, big size and thick. a dogs hearing can be up to 40 times better than ours. in machine type, select physical machines. "i assess border collie puppies gradually, for natural talent, starting at four months of age. i am not at all a talented guy in the kitchen, but i don’t like giving up, and therefore i imagine that i would try and try until it works the way it was supposed to. the procession came near enough for me to recognize some of the faces. 