Each of Backwoods Farm's rodents are physically weighed
several times a week to ensure consistent & proper sizing.

Compare our sizes and weights to those of other sellers.
Our weights provide you the ability to get the true size
 for your specific needs.
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Mouse Weights
Small
Less than 15 grams
Medium
15 - 22 grams
Large
22 - 30 grams
Ex-Breeder
30 + grams
Rat Weights
Small Rats
45 - 60 grams
Medium Rats
100 - 120 grams
Large Rats
200 - 220 grams
Jumbo Rats
300 + grams

Rat in shadow
Mouse in shadow