Description: The cat toy ball is made of superior ABS, non-toxic and odorless, eco-friendly and durable. Upgraded structure design, thickened housing, excellent wear-resistant and impact-resistant performance, good bite resistance and scratch resistance. Features: [Auto-rotation] The shape of the ball and the self-balancing system allow the ball to move freely in a very unpredictable way. [Funny] It will automatically change direction when encountering obstacles, more likely to attract the cat's attention. [Large capacity] Interactive cat toys can work for three to four hours continuously after fully charged, ultra-long standby, eliminate the trouble of frequently changing batteries. [Easy to carry] Compact and lightweight, easy to carry. It helps keep the cat active and healthy, prevents the cat from becoming obese, improves the hunting instinct of an indoor cat. [One-button control] External switch design, one-button operation, convenient and efficient. Features: Color: white; pink; blue (optional) Material: ABS Power supply: USB Battery: 18650 lithium battery Working time: 4 hours Application: cats, dogs, etc. Occasion: home, outdoor, park, travel, etc. Diameter: 6.4 cm / 2.51 inch Package size: 7 * 7 * 7 cm / 2.75 * 2.75 * 2.75 inch Package weight: 110 g / 0.24 lb Packing List: 1 * Cat Toy Ball 1 * USB Charging Cable 1 * User Guide