Thank you all for the replies, I wasn't trying to ruffle any feathers, I just needed help with sizing.

I am trying to convince my significant other to purchase a playmate. I live in an apartment and want to keep the new puppy as small as Kodak. I know weight can't be guaranteed, but mines is 3 1/2 lbs and I wanted my 2nd one around the same. I purchased him out of state and the breeder does not have any. She was checking with other breeders that she deals with. In the meantime, members here have been trying to help me and it's greatly appreciated. So I put the topic up for a guideline/formula to go by. Not just for Heather's puppy, but other's that are trying to sell that may have a tiny puppy. But like many have said, they started out tiny and blossomed bigger than anticipated.