The Fomilator jets out streams of thick, fluffy foam up to 15 feet. To use: pour foam concentrate into the Fomilator reservoir, fill it with water and you're ready to go! To prime the blaster just push the trigger and watch as it fills up with foam, then pump to blast! Each package includes 1 Fomilator and a 4 fluid ounce bottle of non-toxic and tear free formula foam concentrate. Each blaster also includes instructions and fun Fom play ideas. Requires 4 AA batteries, NOT included.