360 DEGREE SELF-ROTATING: The main purpose of the self-rotating ball is to let your pet chase the ball and have fun. With just a press of a button, the ball will begin to rotate 360 degrees automatically and attract your pet’s attention. The ball will continuously move around your house while producing red light simultaneously AUTOMATIC DIRECTION CHANGE:Due to the sphere shape and self-balancing system, the ball will automatically change direction direction when it collides with a wall, chair, door, etc. no extra help is required, all you have to do is turn the ball on to play and turn it off when your pet runs out of energy and is finished playing ATTENTION : the ball rolls better on hard ground , may not roll well on thick carpet, please buy carefully they play