* Puppy weight: 1.5 to 2.5 lbs
* Adult weight: 18 to 28 lbs
* Boston Terrier
* Puppy weight: 3 to 5 lbs
* Adult weight: 12 to 25 lbs
* Havanese
* Puppy weight: 2 to 4 lbs
* Adult weight: 7 to 13 lbs
* Maltese
* Puppy weight: 4 to 6 lbs
* Adult weight: 4 to 7 lbs
* Shih Tzu
* Puppy weight: 5 to 10 lbs
* Adult weight: 9 to 16 lbs
* Pekingese
* Puppy weight: 6 to 10 lbs
* Adult weight: 14 to 18 lbs
* Miniature Poodle
* Puppy weight: 10 to 12 lbs
* Adult weight: 15 to 20 lbs
* Cavalier King Charles Spaniel
* Puppy weight: 12 to 14 lbs
* Adult weight: 13 to 18 lbs
* Cocker Spaniel
* Puppy weight: 15 to 20 lbs
* Adult weight: 24 to 35 lbs
* Beagle
* Puppy weight: 18 to 22 lbs
* Adult weight: 22 to 30 lbs