Katbite 6x6 Inches 300pcs unbleached parchment patty paper, it is made of thicker 45gsm paper than commonly used 28gsm or 35gsm hamburger wax paper sheets. The parchment paper squares are thicker and tear-resistant, so it can be used to separate the frozen patties about 3 times,perfect for seperating patty,cookies,storing foods and wrapping candies.