Healthy weights for their size - approx 12 lbs (male, 5') 15 lbs (female, 5.5+'). They look heavier than they are, especially if you're not used to working with snakes of these proportions.
lol wow!!! my dog is only going to be 22 pounds!! and some dogs i know grow to less than that...LOL i guess if u own a small dog and a blood python you better watch it!