What types of mice/rats should I get according to a BP's width?

[Virago]

For example, let's I have a BP with a width of 5 cm (just for example), and I wanted to feed it something with about the same width, but I don't know the size of any rodent just by knowing its name (hopper, pinky, etc).

I just want to know the width of the frozen mice/rats I can buy from Canadian PetSmart and/or RodentPro, such as the width for a pinky.

RodentPro only includes the length of the rodents, so I also want to know if I can just buy one based off of that.

I want to learn all I can before I get a BP!

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Thanks so much
-rainbowlack

Im no expert at all but im pretty sure you should worry more about the weight of your feeder than the width. I think the width thing is more for safety. Im pretty sure a bp can eat feeders that are a little fatter than themselves. Im lucky enough to have a good family owned pet shop nearby that specializes in reptiles. I get to hand pick my feeders but i guess not everyone can do that.