The Thing-in-a-Bag cat toy is loads of fun for your kitten or cat.  The Thing-in-a-Bag cat toy appeals to a cats instict to pounce on small objects that move on their own.  Has your cat ever attacked your hand or foot while you were sleeping simply because you moved under your covers?  Well, the Thing-in-a-Bag illicits the same sort of response from your cat.  Cat's simply can't resist pouncing on this "Thing"!