This filter cap is Designed to fit the AeroPress Coffee and Espresso maker. The filter cap is the part that holds the filter against the bottom of the AeroPress chamber.<br><br>Made from high quality and food-grade polypropylene plastic.<br><br>Lose or break your AeroPress filter cap? Instead of replacing your entire AeroPress, simply purchase a Sikawai replacement filter cap! This is the exact same filter cap that came with your Original ones ,so buy one now and get back to making delicious coffee!