this is either 2 pieces of 13x18 or 1 piece of 18x27, you could get a small opal and small standard, or a large opal, each piece will be either 28 or 32 ct with opals being 28ct. the fabric will be jobelan, lugana, jazlyn or jubilee, there will be equal to 4 18x27 pieces of opalfabric through the year