SAFE and CERTIFIED - Certified as safe by the FDA regulations and LFGB.;COOKS EVENLY - Provides outstanding heat conductivity, making sure every item is cooked evenly, no more burnt edges or uncooked centers!, Nonpoisonous and harmless, no peculiar smell.;FREEZE OR BAKE WITH IT - suitable for oven, microwave or refrigerator, Can be used at temperatures varying from -40 degree F-480 degree F (-40 to 250 Degrees C).;STORES EASILY - Flexible silicone material can be rolled up and stored in small spaces.;DURABLE AND EASY TO CLEAN - Simply wipe them off using hot water and dish soap, these mats are ready to be used again, made of grade platinum Silicone and glass fiber ,Can be reused thousands of times, repeat use up to 2000-3000 times.