Katbite 9 inch square air fryer parchment is heavy duty and oven safe temperature resistance is from -68 to 425 degrees fahrenheit.It is 200pcs/box. Katbite 200 pcs 9 inch air fryer liners made of extra thicker 45gsm paper vs commonly used 35gsm or 40gsm paper, it's about 12% thicker than others'.Pre cut parchment liners are perfect for 9 to 10 inches square shape air fryer or cake pan. The diagonal length is about 11 inches.