1.Polyester 2.Fast Absorption Lock odor The first layer is made of topquality and soft knitting fabric, which will let your pet always feel comfortable. The second layer is an absorbent layer that quickly absorbs and locks urine and other liquids, max capacity of 1600ml. The third layer is the waterproof layer which ensures urine won't leak to the floor. The fourth layer is a nonslip and stainresistant bottom, it keeps the pad staying in place, and keeps your floor clean and dry. 3.Multipurpose These pee pads are for dogs' potty training, other pets like cats, rabbits, hamsters, etc. The usage scenarios are diverse, can be put in playpens, crates, kennels, pet carriers, on the sofa, car seat, and wooden floor. Can also place water and food bowls on it to be a pet feeding mat. 4.Washable Reusable When dirty, throw it into the washing machine to get a clean pad, no unpleasant room smells. One purchase for longterm use, no need to buy repeatedly. 5.2 Pack Get 2 pads at once. If one pad is being cleaned, the other can be a replacement. Size is 48'x60', suitable for small to large dogs, born puppies, and other small pets.