Pack of 50. The High Density Bun Rack Covers are ideal for use in bakeries, restaurants and commercial kitchens, and they are recyclable too. These plastic bun rack covers have been devised to make the pans of rolls, bread, pastries, cookies, etc. last long and stay more crispy. Made from high 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 by covering the entire full size pan rack with the help of these High Density Bun Rack Covers.