They're ideal for preparing ingredients or serving snacks. Durable. Dishwasher-safe. Oven-safe up to 180F. Upturned rim prevents spills/overflows onto counter top or table. Perfect for cutting, slicing, preparing, serving. Measuring guide. Embossed dots spaced 1 inch apart allow for accurate slicing. (square and rectangle only) Non abrasive surface. Will not dull sharp knife edges, absorb odors or bacteria, chip, peel or crack. 9.5 inches by 15 inches.