This tam is about 10 inches in diameter.  It's made from Corriedale and Suffolk wool, and a blend of Merino wool and silk, which is variegated in color with grays, blues, and reds, which gives an overall effect of looking lavender. The Merino/silk yarn is very soft, silky, and a bit more shiny than the all wool sections.  The lavender and blue variegated section is all wool, and the two tone effect there is a result of the raw wool having had a lot of lanolin in it.  Lanolin is nice for the skin but repels the dye, giving what I consider a nice uneven effect.