This is basically the same design as the single color version of the Celtic Knot Doily except that this pattern has been written specifically for creating the doily in two colors. The pattern includes special stitches which enable the crocheter to work with two colors of thread at the same time. This doily is made using #10 crochet cotton and size #8 steel hook. The finished doily measures about 15 inches at its widest points.