Well performance: filmy paper with strong penetration of water, make the tea seep through easily and quickly to strong tea, never taint the flavor of brewed tea; Allows for the fullness of flavor while also confining debris. Easy to use and Remove: 400 pack of quality tea filter bags, enough to use for a long time, Can throw it away and no need washing the strainer every time you want tea. Size: 7 x 9 cm, perfect media size for single cup, travel mug, glass Natural and Safe: Natural wood pulp filter paper, unbleached, burlywood color, processed by UV and infrared drying. Widely used: Great used for tea, coffee, scented tea, tea DIY, foot bath package, hot pot package, soup package, bamboo charcoal bag, sachet bag, desiccant storage, etc