The M-Pets carbon training pads are 25% thicker and absorb twice amount of liquid than normal training pads. Each pad has 5 layers, which is designed to keep your floor clean and dry. The top layer is made of our Carbon Technology that provides max absorption and removes odor quickly. The middle layers help turns liquid into gel, which holds more fluid than usual training pads. The bottom layers are made with high endurance that prevents the pads from wearing and tearing, keeping the liquid from staining your floor.