From the product description, check product page for current description, price and availability:

• 【High Quality Nylon Material】Our brewing bags are made of high-quality nylon, which is more durable than polyester. It will hold up to 20lbs of grain. Double reinforced stitched edge won’t rip or tear easily. Easy to clean and dry fast.
• 【Extra Large Size】26″ wide and 22″ tall, the brew bag will fit kettles up to 18″ in diameter. The extra large size makes the bag versatile enough for any application and ensures you can brew even the largest of recipes without spilling any grain.
• 【Perfect Drawstring Design】The strong drawstring is easy pull drawstring ensures no spills and quick clean up, and makes sure the bag doesn’t fall into the pot and stays secure and tight. The clever design is prevents bag contact with hot kettle bottom.
• 【Multiple Uses】Great for beer/ jams/ cold brew/ cider/ fruit wine making, also can meet anything requiring a mesh bag to cook or filter.
• 【Super Fine Mesh】The hole of our brew bag is 250 micron mesh, which is tight enough to filter the smaller particles but loose enough to allow liquid to move through the material.