【Reusable-super durable & Premium materials & Original stitching technology】 This Underpad has invested in the stitched velvet technology, which is tightly fitted and not easy to fall apart. Even if it is cleaned once a day, it can be used for at least 1 year. 4 pieces can be used for more than 4 years. Compared with disposable bed pads, it saves a lot of money and is environmental. The hay, fur, and litter are REALLY easy to remove from the pad because of the premium materials and avoid pilling