Walker (2 yrs old) is about 8.5 pounds and sturdy as can be. He looks gigantic next to his 4 pound little brother, but I have to be honest: I worry about little Morgan getting hurt every minute of every day. And maybe I'm just overly protective, but Morgan's little legs are so much more delicate and he is so much easier to step on or tumble down the stairs. I hope, he'll gain another 2 pounds, but I also see the appeal of having a tiny dog. As long as they stay healthy, size doesn't matter in my opinion. Find a great breeder though, ask lots of questions.