The difference between Pup-Grass™ and other synthetic grass is in our unique patent-pending design. Pup-Grass™ provides a soft feeling, rich appearance while our unique backing allows for immediate drainage of liquid waste. The antibacterial agents inhibit growth of bacteria providing a cleaner, healthier environment for you and your dog. Pup-Grass™ is affordable and durable and it is easy to install over soil or concrete and virtually maintenance free. Allow 2 weeks for shipping.