Environmentally-friendly dog grass patches for dogs of all sizes Chihuahua sitting on its DoggieLawn - an environment-friendly substitute for dog pee pads. 3 Missing: list | Must include: list. : Puppy Training Pad Grass Indoor Potty Trainer Pee Pad Tray for Pet Dog Cat Outdoor Restroom Patch - " x 17" x " inches: Pet Supplies. Add all three to List. These items are shipped from and sold by different sellers.