If You Care Parchment Baking Sheets are pre-cut for your convenience. They are made from FSC certified unbleached totally chlorine-free greaseproof paper. Gluten and allergen-free, they are coated with silicone, derived from a natural element, which gives the product its excellent, and very popular, non-stick properties. It is perfect for baking and cooking. No greasing is necessary so you cut the fat and calories on your food, not to mention the prep time. Microwave safe and oven safe up to 428 °F/220 °C. They are Certified Compostable for home/backyard and industrial/municipal composting. Each sheet measures 200 in2 [12.5” x 16”].