Perfect for baking cookies, this 1/4 size professional quality rectangular baking mat can be used on both sides. Coated with nonstick food grade silicone and reinforced with woven fiberglass, this versatile baking mat has a temperature tolerance of -40 degrees Fahrenheit to 540 degrees Fahrenheit and will provide even heat distribution to your baked goods. Designed for all types of ovens, microwaves, toasters, and freezers, it cleans up easily without leaving a sticky mess on your pans and has a lifespan of up to 2,000 times depending on care. Constructed of FDA and LGFB-approved material and BPA and BPP free, this reusable silicone baking mat is safe for high-heat temperatures. With its built-in nonstick properties, there is no need for greasing, baking parchments, unhealthy cooking sprays, or oils.