The main purpose of the self-rotating ball is for your pet to follow it and have fun. With the push of a button, the ball rotates 360° and attracts your pet’s attention. The ball moves continuously in your home, producing a red light at the same time. Due to the ball shape and self-balancing system, the ball automatically changes direction when it comes with a wall, chair, door, etc. collides. No further support is required. < Br> You do not have to replace the batteries again and again. The built-in 250-mAh Li-ion battery can last 3.5 to 4 hours after 2-hour charging time. Can turn off automatically after 45 minutes to prevent your kitten from losing interest in the toy ball. It is perfect for those who do not have time with their cats and dogs. Br> The cat play ball is made of eco-friendly ABS material, is safe and non-toxic, anti-food and bite. And the LED light on the balloon does not harm the eyes of the animal. < Br> Help domestic cats and dogs get more exercise, improve