Wee Wee Patch Replacement Grass is intended for use with the Wee Wee Patch Indoor Potty. This replacement grass containsantimicrobial agents and attractant to eliminate smells and encourage your dog to utilize the patch. Wee Wee Patch Replacement Grass is the perfect house training aid and can be used indoors or outdoors.Replacement grass patch for the Wee Wee Patch Indoor PottyEasy cleanup, perfect for indoor or outdoor useArtificial grass contains antimicrobial agents and attractant