WORKS WITH ANY SIZE PEE PAD No matter if you use a small or extra-large sized pee pad, our extra strong magnets will hold it in place; Even if the pee pad is "wet", it will still be retained to prevent any mess in your homeMAGNETS: Easy to attach and release - just measure how far apart your little pads will be. Remove the 3M stickers from the magnet and stick on the wall. Place the handle with the pad on top of the base and you're done! Works on many different types of surfaces: drywall, glass, doors, basically any flat surface!Perfect for Large Dogs and 2+ Dog Families: Have two or more dogs and need larger space for potty training? It is extremely easy to expand your training area with Pee Pads. Simply add more pee pads and use more puppy pads to cover more area or to cover the cornerHands-Free and Be Relaxed: Are you always worried that dogs pee everywhere in your house and make the walls very dirty? You can neither stop this behavior nor clean the walls easily. When using our magnetic pee holder, you can effectively use the pee mat to keep the wall clean without stopping your dog's normal marking behavior, which greatly frees your hands and reduces cleaning work.