Catit Design Senses Super Roller Circuit takes fun and action to breathtakingly new heights. This large 8-piece circuit has alternating high and low sections with an enticing motion-activated illuminated ball the zips around inside, enticing cats to chase and swipe at it. There are large openings along the circuit that allow curious felines to safely reach in and touch the ball. It's the ultimate exercise stimulator for cats. Features: Interactive play for cats Includes: Illuminated ball Intended For: Cats Size: Large. Color: Blue & White.