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 bright LED light rings, it can be clearly seen in dim environments, adding fun to night walks or indoor games. Waterproof: Easy to clean. Meets the requirements for indoor and outdoor use, allowing interaction with your dog in environments such as outdoor swimming pools. Suitable for Multiple Surfaces: The ball can operate on various floor types such as marble, wood, tile floors, and thin carpets. 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 lighting effects. 2. Please allow 1-3cm deviation due to manual measurement. 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. Package List: 1x Smart Interactive Ball for Dog