Use with no 2 (1x2) size filter papers. The incredibly frothy coffee company. Our ceramic filter is designed with straight ridges to be quite forgiving in the brew and give a slower extraction. This helps bring out the sweeter, more subtle flavors of your coffee. Three holes in the bottom and a thick base control the flow rate for that perfect cup. If you love coffee as much as we do, you'll be glad to know that we've designed a full range of products to help you make coffeehouse quality drinks of any style at home. Ceramic drip coffee filter multi lingual instructions inside. www.aerolatte.com. To see the full range, visit our website at www.aerolatte.com Made in China to European design.