There is a tiny tube inside the metal container from bottom to top When you blow air through the top pipe, you create suction that pulls the liquid up through the vertical tube, and the liquid exits the sprayers mists This metal pottery painting sprayer pottery atomizer tool used to spray or oxides in clay works easily and quickly with the mouth Could be used to create special painting effect on the ceramic, clay and pottery craft The blowing glaze pots painting sprayer craft from stainless steel, rustproof, resistant Widely used for painting special effect spray paint or spray glaze, ceramic blow glaze use, pottery painting, clay craft project