During kitten season, I foster Momma cats and their kittens, this gives the little ones room to grow and play, as well as a place for Mom to over see them.  It is perfect and keeps them active and well taken care of.  I use it indoors so they stay warm and safe from the outside elements, after they are old enough they are spayed/neutered, given age appropriate shots, flea medication, worming, free vet visit, and put up for adoption through the Coos County Animal Shelter.