This genuine OEM sourced replacement part designed for use with Hamilton Beach juice extractors. This is the part that grinds the food product you insert into the juicer to produce juice. When you are finished using juicer you want to remove strainer and clean the filter. Some users of these juicers will keep two of these on hand, to be able to change food product and not have to clean the first one immediately. This strainer is made out of metal and it is sold individually.