The Catit Design Senses Scratch Pad appeals to your cat's sense of touch, providing the scratching surface he instinctively needs. Cats communicate through touch. When a cat scratches an object, scent glands in the paws deposit the cat's odor as a way to mark his territory. Add catnip (included) or conceal treats (not included) in the cut-outs for multi-sensory appeal. Refill scratch pads sold separately.