Four-Layer Premium Materials: These pet pads are constructed with four layers of premium materials for maximum comfort and functionality. The top layer is made of 100% polyester knit fabric for a comfortable surface. The second layer is a super-absorbent, high-density middle layer that effectively retains moisture. The third layer is a breathable, waterproof PUL inner layer that prevents liquid from seeping through. The bottom layer consists of 100% polyester knit fabric with a non-slip silicone sole to keep the pad securely in place. Non-Slip Bottom: The fabric bottom of these pet pads is equipped with plenty of non-slip silicone to ensure the pad stays in place even during active use. This non-slip feature helps keep your floors dry and clean. Washable and Reusable: These pet pads are designed to be durable and can be washed and reused multiple times. This large washable dog changing pad provides ample coverage and can be used for various dog breeds and sizes. Multifunctional: These pet pads serve a variety of purposes beyond potty training. They can be used for housebreaking dogs, in crates, as litter box liners, and to provide protection in crates and kennels. They're also great for use in pet carriers, to protect carpets, hardwood floors, couches, and furniture during travel, and for lining car seats and trunks. Additionally, they can be placed under food and water bowls to catch spills and can double as a puppy training pad when welcoming a new furry family member. These versatile pads offer comfort and protection for both pets and pet owners.