Features: QUALITY MATERIALS: Made of quality material, this dog toy is sturdy enough to withstand pet bites and scratches. Maintains durability in both smart and normal mode and can be used for a long time LED Lightings Effect: Equipped with a bright LED light rings, it can be clearly seen in a dim environment, adding fun to night walks or indoor games Waterproof: Easy to clean. Meet the requirements for indoor and outdoor use, interact with your dog in environments such as outdoor swimming pools. Suitable for Multiple Sites: The Ball can run on any type of had floor such as marble, wood, tils floor, thin carpet etc PERFECT FOR SMALL TO MEDIUM DOGS: Specially designed and sized for small to medium sized dogs to accommodate a variety of breeds, providing an interactive experience to suit your dog's needs and style of play. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: Silicone + ABS Diameter: 80mm Battery: 500mAh Single ball weight: 165g Charging voltage: 5V Working mode: Crazy mode/Normal mode Waterproof level: IP54 Standby: 7 days Continuous working: 4 hours