Merino Tempera Collection 19 Micron Extra Fine Wool Roving for Felting 6 Colors 4.5 Ounces Extra Fine 19 Micron Merino Wool Roving Perfect for nuno felting, wet felting, needle felting, and spinning. Enjoy 6 colors, 3/4 ounce of each color, total 4.5 ounces Beautifully dyed. Dye methods certified by the International Oeko-Tex Association