This pollen extractor is a round drum like extractor. The plant matter (leaves) is frozen then placed in the top onto the silk screen and the cover replaced. Then it is plugged into the electric and the four blades beneath the silk screen begin to turn and vibrate until the pollen separates from the leaves and passes through the silkscreen, which makes sure that no plant matter follows it through! When finished the pollen can be collected to do with as you wish. Most people will press it into a solid form, and some will use it in cooking. Why waste what you normally throw away when you discard the leaves? This contraption can pay for itself with a single days!