1.EXTRA STRONG - 200pcs pre-cut parchment paper sheets made of extra thicker 45gsm paper vs commonly used 35gsm or 40gsm paper, it's about 12% thicker than others'. We define it as heavy duty parchment paper. 2.PRECUT PARCHMENT PAPER SHEETS - Are you still worried about curly 9x13 parchment paper quarter sheet and spending time cutting? Our pre-cut parchment sheets can help you get rid of these troubles. Just pull one of the pre-cut 9x13 inch parchment sheets out and it's ready to use. No more curled edges. 3.HEALTHY & NON-TOXIC - parchment paper sheets 9x13 made from natural wood pulp and totally fluorescent . Food grade silicone coating makes your baking and non-toxic. 4.MULTI-PURPOSE - Do you think 9x13 parchment paper baking is only used for food baking? NO! Because 9x13 baking sheet's temperature resistance is from -68 to 450 degrees Fahrenheit, you can find it everywhere in kitchen whether in zer, microwave or air fryer as long as you can think of it.