Annovero salad plates are manufactured using only the highest quality porcelain (grade A). We fire our plates at a high temperature to maximize the strength of the porcelain. Plates are 8.5 inches in diameter with a slightly flared rim to prevent food from spilling off the plate. Dishwasher, microwave, freezer, and oven safe up to 482°F. Each purchase includes a 1-year manufacturer's warranty. Annovero uses EPS foam to protect your plates from being damaged during shipping. EPS foam is 100% recyclable.