This Shawl measures 47 1/4 inches long by 17 inches wide.
Make sure to wash and rinse in lukewarm water and then wrap in a towel to rid of excess moisture. It can then be laid out to dry, preferrably where air can get to the bottom as well.
This is an ancient art. Wet Felting has been done for centuries, when our ancestors would do large amounts and sometimes drag wool around behind the horse to get it felted.