I have a cat and a dog who both love these mice!  We go thru mice so quickly between the dog's love to chew and the cat's ability to hide these things everywhere.... This box was huge and the mice are perfect.  They're the right size and my pets love the fur covering.  They're also (I think) a step above the pet store mice because those are full of a pressed-cardboard material and they get nasty after landing in a water bowl or being chewed by the dog.  These have a plastic body and are much less cleanup when they've reached the end of their life.

Only complaint is that each mouse has a sales tag... 60 mice later I was a little sick of cutting those silly plastic tags off.