Cat senses are unique. They see and hear things that are beyond our perception and experience the world in ways that we can only imagine. Our Catit Design Senses products are designed to appeal to all of your cat's senses.Made to stimulate your cat's sense of sight, sound and touch, the Catit Design Senses Speed Circuit takes playtime to a higher level. It has a number of innovative features for thrilling excitement, including ramps for ball acceleration, elevated tracks that add a fast-paced exciting roller coaster element, and a motion-activated ball that lights up when it moves, allowing cool day or nighttime play.