The Cheerble Wicked Ball M3 is a 1.9 inch interactive cat toy covered in soft synthetic fibers, sized for kittens and adult cats. It has three modes (Hybrid, Bounce and Roll), runs on hard floors, low-pile carpet and thick rugs, and a motion sensor reverses it away from obstacles. It plays for 10 minutes, rests for 30 and wakes when touched, for up to 3.5 hours of continuous play. A beep signals low battery or helps you find it.