Battery foamed toy bubble foam machine gun bubble machine + 50 ml bubble liquidyour children can have a pleasant time with the battery bubble machine gun. the foam machine, which adults and children can play with, works with 3 pen batteries. it is very simple to use. open the cover on the back of 3 pen batteries and insert them according to the + - poles. then pour the bubble solution into the container. attach the perforated apparatus to the front of the product and immerse it in bubble water. press the button on the handle and enjoy the bubbles Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.