Wool Felt Gremlin Green WCF001-2715 by National Nonwovens

20% wool, 80% rayon.  36" width of fabric. Does not fray.  Great to use for backings on your wool projects because it adds stability and flatness to your final project.  And since it doesn't fray, you don't have to worry about the edges fraying when you finish off with the blanket stitch.