Like made of stars dust, Solstice collection includes 2 shapes of serving plates and 3 shapes of bowls. Available in 5 different finishes, the rectangular gourmet plates are 8.25 x 7 and they are made of black porcelain all the way through. This is the Cosmos Platinium finish: a dark and deep finish with touches of platinium sparkles. Oven and dishwasher safe. Freezer and dishwasher safe.