These FoodHandler Bun Pan Bags are a great way to keep dough fresh and it from . These bags are made from high-density polyethylene and are a 27" x 37" size. Model #: 22-PB27High-density polyethylene to 200°F holding temperature for food is 140°FKeeps dough fresh & from Flat pack27" x 37" size0.65 mil thickness"