Garbage!
DO NOT WASTE YOUR MONEY!  This is NOT 18", it is NOT even in thickness or length at all,  it is shedding right after unwrapping and some areas are knotted up in clumps.  There is no amount of sewn rows together that would add up to any volume!  Complete garbage!  Shame on the seller for this totally useless product and anyone who gave it a good review!  If I could, I would give it a minus 10 stars!
Rating: 1 stars