The Piggy BedSpreads Washable Absorbent Fleece Cage Liner is made of high-quality materials that are absorbent and easy to clean. It is designed to be used in place of disposable bedding or wood shavings. The fleece wicks away urine from the surface, leaving a dry, comfy surface for your guinea pig. Simply sweep up droppings 1-2 times per day, or vacuum with a hand vac, and then toss in the washer. The reversible design allows for two different looks for your cage bedding.