Oversized litter tray made specifically for puppies or small to medium sized dogs. Use with Puppy Go Potty Dog Litter. Puppy Go Potty Dog Litter is the original indoor solution for when your dog can’t GO outside. Ideal for indoor dogs, high rise living, puppy training, inclement weather, senior dogs or owners, kennels and more. Made from cellulose fiber, in contains natural pheromones that attract your dog, making training easier. An innovative 100% natural fiber litter in a large pelleted form that’s lightweight, yet stands up to moisture and won’t breakdown when wet. Litter offers more discreet elimination than pads.