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[JuliusSqueezer]

In most petstores...I fail to notice anything but price difference in small and medium rats. They always look the same size to me. Then again sometimes I would ask for large and get what I would consider small. It's best to look at them and pick a rat that is the right size and forget trying to find a word to describe exactly what you are talking about to petstore personel. Rodentpro is a little better with consistancy.