The Plant Filter Bag is made of nylon material with a built in waterproof layer, good waterproof performance, quality and durability You can use the Filter Bag to extract particles of different sizes. The breathable mesh design is convenient for ventilation and drying. They are washable,reusable and can be applied for long time The size of the Filter Bag is 44x31cm, and the size of the pressed screen is 20x20cm.The filter bags are suitable for filtering liquids, such as fruit juice, soy milk, medicinal residues, and can also brewing items, you can effortlessly use them to make, cold brew, cider, and wine, giving you an easy transition to all grain brewing The mesh sizes of the 8 filter bags of different colors are different. The filtration accuracy of the violet filter bag is 25 microns, the filtration accuracy of the yellow filter bag is 73 microns, the filtration accuracy of the red filter bag is 160 microns, and the filtration accuracy of the blue filter bag is 220 microns. The