Stainless steel cone coffee filter fits Hario® Coffee Makers. This filter fits V60 02 & 03 Coffee Drippers. This filter also fits 6, 8 & 10 cup Chemex® Coffee Makers. This filter is washable & reusable. This reusable filter lets the natural oils from your coffee through for better flavour and to provide a full-flavoured coffee. Designed & Engineered by Crucial Coffee. 1. Pre wet the filter & vessel. 2. Empty out the water 3. Grind 24 grammes of finely ground coffee and place it into the filter. 4. Pour a small amount of water over the grinds. Let sit for 30 seconds so coffee can bloom. 5. Continue to pour until you reach the desired amount of water. 6. Enjoy your delicious coffee! This is a generic product designed and engineered in the United States by Crucial Vacuum/Crucial Coffee. This is not a Hario® OEM product and is not covered under any Hario® manufacturer's warranty. The Hario® brand names and logos are the registered trademarks of their respective owners. Any use of the Hario® brand name or model designation for this product is made solely for purposes of demonstrating compatibility.