The savic puppy trainer starter set contains a slip proof waterproof plastic tray and matching pads the tray works as additional protection from wet spots on your floor and is the ideal place for your puppy to relieve itself as it becomes house trained place your puppy on the toilet or guide it to the toilet when it becomes restless then reward your puppy after successful use change the pads after each use to make sure your pet feels clean and comfortable on the tray when your puppy is usi