The KOOLTAIL Washable Pee Pads for Dogs are perfect for use during puppy training. Made of high-quality fleece, these pads are easy to clean and are reusable. They also have a non-slip design that helps keep the training pad in place on smooth surfaces. With a waterproof coating, these pads will prevent liquid from flowing out of the box. There are three different sizes available–large, medium, and small–so you can pick the right one for your dog.