twiglet, looking to be on the big side, she is my second largest rat at the moment, she is 410g..
my biggest right now in my rosie, she is 424g, but she is getting old now 2.5 years.

my largest rat was sasha at 520g so twiggy miles off but doubt she'll get that big... none of my rats are over weight, sasha and her sister who was close behing her in weight were just big rats. twiggy too isnt over weight just the way she sits some time she looks fat :P but she is still strimlined, when standing and other positions :)