The description says this pad has technology that turns the pee into gel instantly. The first time my dog peed on this it went right through to the floor and off the side onto the floor. The only good pee pads I have found are for cats. Breeze litter box system uses pads that are thick and really do turn the pee into gel. Those are the best pee pads out there. If only they would make them a little bigger for dogs.