Jira - the name is African, and means "related by blood", and she has a beautiful twin brother, which I also own - Kato.
She is an African pygmy dormouse, and is veeery small. They can squeeze out of almost everything, and is therefore kept in a nice terrarium, which is decorated with climbing tree, hiding places / caves of wood and lots of running space.
She is about 7 weeks old.
They are active at night! :-)