1.FOOD SAFE/NON-TOXIC: These silicone baking mats are made of premium quality non-toxic materials fiberglass and food-grade silicone, from bitter cold to intense heat (-40°F up to 480°F) . Oven, Microwave, Dishwasher and Freezer Safe 2.VERSATILE USE: 3 cooking liners, Half Sheets x 2 (16.5x 11.6'), and Quarter Sheet x 1 (11.6x 8.3'). The mats are excellent for sticky food, making chicken / biscuits / pie / macaroon / pastry / cookie / bun / cake / dumplings, as well as for kneading and rolling. No need for cooking spray, pan greasing, and parchment paper. 3.MAKE LIFE EASY FOR KITCHEN: Tired of scrubbing and soaking? We know how time consuming cleaning tray bakings can be! Ditch the parchment paper and make your baking simple. Easy to clean up - Toffee? Caramel? Macaroon? Ditch the cleaning and keep the kitchen effortlessly gleaming. Simply wipe clean with warm soapy water. You can also wash it in your dishwasher. effortlessly. No stickiness or burnt left parts for you to scrub! Heat is distributed evenly; forget about smoke, burned or undercooked spots.