Pack of 200. The Low Density Bun Pan Bags are ideal for use in bakeries, restaurants and commercial kitchens, and they are recyclable too. These plastic bun pan covers have been devised to make the pans of rolls, bread, pastries, cookies, etc. last long and stay more crispy. Made from low density polyethylene, they are absolutely safe for use and meet FDA requirements for use for food applications. Keeping the dough fresh longer and protecting it from getting contaminated due to dust or dirt, becomes a breeze with the help of these Low Density Bun Pan Bags.