6-Layer Absorption: Advanced material locks in liquid as gel, preventing leaks and odors. Leakproof Backing: Durable plastic layer protects floors from stains and wet paws. Potty Training Aid: Built-in pheromones guide puppies to use pads correctly, speeding up house training. All Pets and Ages: Works for puppies, adult/senior dogs, plus cats and small animals. Bulk Value Pack: Large 22"x22" pads in 100 packs reduce change frequency.