Great housetraining aid for indoor and outdoor use Looks and feels like real grass with built in dog attractant Durable tray allows for easy disposal of waste   Four Paws · Small The  durable tray features a unique pourspout that makes for easy drainage.  Since 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. The patch is an ideal training aid for both inside  and out.