The main purpose of the self-rotating ball is for your pet to chase it and have fun. With just the press of a button, the ball spins 360 degrees and catches your pet's attention. The ball is continuously moving. in your home and creates a red light at the same time. Due to the spherical shape and the self-balancing system, the ball automatically changes direction when it collides with a wall, chair, door, etc. No further assistance is required. You don't have to replace the batteries over and over again, the built-in 250mAh Li-ion battery can last 3.5-4 hours after 2 hours of charging. Can turn off automatically after 45 minutes to prevent your kitten from losing interest in the toy ball and is perfect for those who don't have time with their cats and dogs. The cat game ball is made of environmentally friendly ABS material, safe and non-toxic, anti-seize and anti-bite. And the LED light on the ball does not harm the eyes of the animal. Help domestic cats and dogs to get more exercise, improve immunity, reduce obesity and kill boredom when owner is away.Please use this cat toy ball on hard floors, eg . Parquet floor, tiled floor, fine carpet. It may not roll well on thick carpets.