Here is a guide to the relative sizes of Maileg mice.
The mice come in four different sizes:  Mums and Dads; big brothers and sisters; little brothers and sisters and baby mice. 

Mums and Dads include:
Big brothers and sister mice include: Little brothers and sisters include: Baby mice include: To help make your mouse shopping easier, we have categorised the mice into sizes on our Maileg page here.
If you would like any more information or advice about Maileg or anything else, please drop us an email on and we will be more than happy to help!