Hario 02 100 Count Boxed Coffee Natural Paper Filters Color: Natural Size: Size 02 Style Name: 100 count X 5 Boxes Capacity: 1-4 cups About Us Since 1921 The company has been dedicated to the design, production, and sale We began our history as a manufacturer of laboratory glassware. In 1964, we expanded our production to household items, starting with the coffee syphon. of heatproof glass since it was founded in 1921 and is the only heatproof glass manufacturer in Japan to have a factory. We also began producing lenses for automotive headlights in 1980. Today, We continue to make a variety of items, from microwave-safe kitchenware and coffee and tea implements, to aromatherapy and pet products.