fine mesh stainless steel coffee filter is made of the highest quality stainless steel without using paper filters; the bottom base will stay on and not break; the extra fine wire mesh at the lower part of the filter ensure no grounds end up in your cup.Simply heat the pour over coffee filter with hot water and rinse out, add coffee grounds, slowly pour in the hot water, let the coffee maker drip out the water through the fine pour over filter, and remove the coffee dripper when done, ready to enjoy your drink.Compact and lightweight, the coffee dripper works great at home or work or while traveling or camping.