Pruven housetraining aid featuring quick-train technology encourages puppies to eliminate in specific spots. It"s great for indoor or outdoor training. Just choose an area where you want your puppy to eliminate, preferably away from where he eats and sleeps. Then lead your puppy to the spot and allow him to sniff it. Your puppy will soon realize that this is the place you want him to go. Praise and reward him when he performs. Pruven housetraining aid is safe for use on hard and soft surfaces, grass, straw, and concrete, and it leaves the treated area safe for pets and kids.