Mice and Rats size and weight

Is there a link where I could find the size (picture), weight and category (hopper, small, medium, etc) for both mice and rats?

I looked at the ASF post by Mike under the ASFs forum, very helpful. But I cant find one for rats and mice.

Thanks!

Rats http://rodentpro.com/catalog.asp?pro...el=frozen_rats

Mice http://rodentpro.com/catalog.asp?pro...el=frozen_mice

Thank you!