This is a spray bottle for use with Japanese kusahara - a type of faux grass that can applied in a variety of hobbies, such as to the bases of miniatures, action figures and dioramas to create the effect of a miniature grass field. To use, simply insert your kusahara (sold separately) then use a spatula to spread glue on the surface of what you want to turn into a grass field. From here, you can use this bottle to shake out the kusahara gently onto the glue, which will create an authentic grass effect.