COCOYO best value training pads offer our customers a more affordable way to train puppies or assist aging dogs. Every COCOYO training pad consists of 5 layers of materials. The first layer is made of non-woven cloth, which allows dog urine flow through to the absorbent core quickly. The second layer is made of paper tissue, added with dog attractant. The third layer is a mix of super-absorbent polymer and fluff pulp, which forms the absorbent core that can absorb and turn dog urine to gel. The absorbent core can hold up to 2 cups of liquid. The fourth layer is also made of paper tissue. The back layer is made of water-proof PE film, which prevents wetting your floor.