10-3/4 inch x 16-3/4 inch. Easy release. Also great for rolling dough. Oven safe. Microwave safe. Dishwasher safe. Freezer safe. The benefits of Good Cook's Silicone Bakeware add up to better baking. Our special oven-safe silicone promotes uniform heat distribution, eliminating hot-spots, resulting in evenly browned baking goods. The non-stick silicone surface is easy to clean, durable enough to withstand extreme temperatures and can be rolled up for compact storage. Made from FDA approved food grade silicone. Oven safe to 450 degrees F. Dishwasher, microwave, freezer safe. Non-stick flexible surface. Will not retain flavors or odors from baked goods. Durable for years of better baking. Baking sheet can be trimmed with scissors to fit a smaller cookie sheet. Made in China.