SlimCat is an interactive product that increases feline activity, decreases excessive eating and helps to correct behavioral problems arising from boredom.It fights obesity and helps maintain optimum weight. Slimcat measures approximately 7 cm in diameter and can be used by cats of all sizes. Available is 4 colors. - Watch your cat's natural instincts come alive as she chases the SlimCat across the floor - Combines mealtime with exercise to improve weight loss and fight obesity - Convenient adjustable openings work for many kibble sizes and allow you to control how quickly your cat gets her food - Great for eager eaters - Distributes meals into several smaller portions so dinner is easier on your cat's stomach