Cafec have made these filter papers by only using eco-friendly materials, specifically ABACA (Manila Hemp) and Wood pulp sourced from a forestation project. These filters are FSC (Forest Stewardship Council) Certified, They are eco friendly, 100% compostable and Biodegradable. Cafec create these ABACA filters utilising a 'creping' method where folds are formed on both sides of the paper, you can physically feel the folds as the filters surface are textured. This promotes a smooth water flow when brewing and prevents blockages or choking. These filters are suitable for 02 and 4 cup sized drippers, we also have the Abaca filter papers available in the Smaller 01 and 1 cup size. Small 1-2 Cup Size > Hario 01 Cafec 1 Cup AJI #01 Kalita 155 Origami S Large 1-4 Cup Size > Hario 02 Cafec 4 Cup AJi #02 Kalita 185 Origami M Cafec Abaca Filter Features: FSC Certified ABACA fibres are 4x stronger and 1/2 the thickness of traditional wood fibres Air Dried & Double - 'Creped' 100% Sustainable Compostable & Biodegradable Made in Japan Included: 1x 100pk Abaca 4 Cup Filters