Sight, sound and touch are key senses used when hunting prey. The Catit Design Senses Play Circuit incorporates all three and is specially designed to entice, engage and entertain your cat while appealing to his natural hunting instincts. Cats see and hear sights and sounds that are beyond our perception. They experience the world in ways we can only imagine with their unique sense of taste, touch and smell. Catit Design Senses products are made with your cat in mind and designed to appeal to all of your cat's senses. Catit Design Senses products can be used individually or combined together to create a complete Sensory Activity Center for your pet.