Catnip Ball Food Grade Self-moving USB Charging LED Indicator Silent Relieve Boredom Pet Accessories Automatic Rolling Ball Smart Cats Toy for Home. Description: Designed to entice your cat to stay busy catching and running all day, this ball toy is a great way to help your cat get exercise and help keep her fit. This pet toy is a 360 Degree self rotating moving ball, which rolls around and change direction automatically and smartly when encountering obstacles. It is constructed of silicone material. The diameter is 4.3cm. It is perfect to use at anywhere indoors. Item Name: Toy Ball Material: Silicone Features: Food Grade, Self-moving, USB Charging Battery: 80mAh(Included) Interface: Type-C Size Details: Diameter: 4.3cm/1.69" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Toy Ball 1 x Charging Cable