Designed to be used with the Wee-Wee Patch Indoor Potty (sold separately), our Dog Potty Grass Replacement is a great indoor or outdoor potty-training solution. Dogs prefer to go in an area based on its texture and scent. This realistic dual-height grass with puppy attractant provides a natural feel for your dog. Plus, use this replacement grass with the Indoor Potty Patch that features a durable tray with a unique pour spout for easy drainage. Simplify cleanup with the Wee-Wee Patch Indoor Pet Potty Systemthe ideal training aid for both inside and out!