Designed for use with the AeroPress Coffee and Espresso Maker, the paper microfilters prevent grounds from entering your cup, unlike with French press coffee brewersThe AeroPress coffee and expresso maker is a new kind of coffee press that uses a rapid, total immersion brewing process to make smooth, delicious, full flavored coffee without bitterness and with very low acidityAeroPress Filters81R24Micro filtered coffee and espresso so pure and particle-free that it can be stored for days in a refrigerator as a concentrate and later made into delicious American coffeeFor use with Aeropress coffee and espresso makers only350 count pack; Measure: 2 1/5" diameterItem shape: Disk; Number of pieces: 350