I totally understand what that breeder was talking about! When I was on my search for a Yorkie, I visited a breeder who had a small stud dog, but he was actually quite heavy. He looked as small as a 3-4lbs Yorkie, but when I picked him up, he felt like he was atleast 10lbs

He was very sturdy and all muscle. My Mocha is 3lbs full grown and has a more fragile, delicate build. I know he's about 9" long from neck to tail, but I don't remember his other measurements (I'll take them when I get home tonight).