Pork, Beef, Chicken, and Fish cooking temperatures with strong magnetic back. Have these at your fingertips and never over/undercook your food again! These labels are 3D printed with plastic PETG filament and contain a magnet on the back to adhere to your refrigerator or any metal surface of your choosing. Caution: Although we don't foresee an issue we do recommend keeping these labels away from excessive heat and out of direct sunlight. Melting/Softening temperature for these magnets is 185 degrees.