4 Layers Protection: This high quality incontinence bed pads create a waterproof barrier between any liquid and your sheets or mattress. 18″ x 24″ Incontinence Bed Pads. Multi-uses: The washable pee pads for dogs are suitable for sensitive skin and versatile use in managing incontinence for kids, adults, elderly and pets.They also can protect wheelchairs, car seats, chairs and couches and mattresses.