First off sorry for such the long title only way to explain fully.
Ok so I picked up a rat today at the store. I asked for a rat pup and what they gave me is what they call a small rat. It is around 40 grams. Ok so it is about the same size around as my snake, but my snake is only around 120 grams. So this would be 1/3 its body weight. So is it safe to feed this item to my snake right, since the rats girth and the snakes girth are about the same size?
Also what is the typical weight of a rat fuzzie? Rat pup?

Robert