Dog Interactive Ball: This interactive dog toy is made of ABS+TPU, safe and odorless. Built-in multi-colors flash lights inside the ball, which can grab the dog's attention. With 1.5 hours fully charge, it can work 4 hours in crazy mode constantly. Bring your dog peaceful and enjoyable playtime. (Not work for aggressive chewersL© Rich Interactive Modes: Press the button to choose the mode: Led flash fast, it's in crazy mode; Led flash slowly, it's in normal mode. Choose dog's favorite mode according to its size and interest. (Not work for aggressive chewersL© Motion Sensing Activated: Built-in motion sensor, when something touch it, it will automatically move, rotate or bounce for 10s, then the colorful LED light will continue to flash for 4s to get your dog's attention, if not, it will go to standby. (Not work for aggressive chewersL© IP54 Waterproof & Safe Materials: The sphere is made of TPU material, which is firm, bite resistant and waterproof. The shell and the rotating machine are not integrated, the shell can be disassembled separately when cleaning. If the surface is dirty, it can be easily and conveniently wiped or cleaned with cloth or water, which will not damage the machine itself. Ideal for Medium/Large Breeds: Our Dog Ball is 3.15" in diameter that is most suitable for Medium-Large dogs. We recommend that owners supervise your dogs while they play with the ball and instruct your fur babies on how to properly interact with it instead of just chewing on it.Please note: As we are international seller, our delivery time will take about 10 working days. Our logistics provider and delivery method is: New Zealand Post.