A fantastic laboratory for creating and playing with masses of soap bubbles With the special solution and the electric bubble-shooting machine you can have fun making loads of big and small soap bubbles fly through the air The bubble machine works with 2 batteries AAA (not included). The kit also contains special instruments and a recipe for the best bubble solutions for making big, strong bubbles The illustrated manual guides you through the various phases of the experiments. And for never-ending fun.use the instruction manual to make your own soap solutions. A scientific laboratory suitable for children from eight years old and older.