The kit contains 1 tray and 7 Puppy Trainer pads. The tray is anti-slip for extra stability. You can use the kit also as a toilet are for indoor confined and ill grown dogs. Using the tray ensures a proper clean home environment; the pad remains in place as the puppy cannot take it in his mouth and move around. The Puppy Trainer pads are super absorbent, the pad surface is dry after 30 seconds.