This 10" x 12" oval-shaped, draw-string bag is made of sturdy nylon so you can use it over and over again to make your own nut milk, juice, or sprouts. This works better than cheesecloth because it does not let pulp through and does not stretch out in the same way that organic materials do. Imagine never having to buy a non-recyclable boxed "milk" again. Instead, make your own raw "milk" of any nut or seed you like!