I've had smalls from my local store range from 45g-125g, online or breeders are more consistent, but sometimes I have to grab a couple if I was a bit lazy ordering. The local store normally pre-bags 3 together, but let me check and pick them out of the case at the bottom of the freezer so I can get more consistent sized rats. I usually go by the size terms and definitions that rodent pro list, seems about the going rate from breeders at shows or online.