This 20 cm Fireman Sam bubble blower is called Jupiter and features an automatic bubble blowing function. After you have added the bubble mixture to the driver?s cabin and pressed the on/off button, the bubble wheel will start to rotate and the rings will be submerged in the bubble mixture to produce magic bubbles. The Simba Toys Fireman Sam Bubble Blower ?Jupiter? comes with 120 ml of bubble mixture and is designed for children aged 3 and above. Batteries are not included