Man this is a great invention....it's a portable potty that folds up small enough to fit in a backpack. We haven't used it yet but I forsee it coming in very handy with my youngster when a potty is not near by. Hey maybe on a road trip I can even use it in an emergency.
What you do is use place a bag inside and then dispose of it when you are done. It has it's own special bags with liners inside to absorb the liquid. But it smells to fragrent to me. I've had friends have one for their kids and they just use regular garbage bags in it.