Glad® Press'n Seal® uses Griptex technology to protect food with a leak proof and airtight sealGreat for storing and protecting leftovers, this multipurpose wrap seals tightly onto a variety of surfaces, such as paper, plastic, metal, wood or other dry surfacesThe Griptex technology activates when pressure is applied and seals to itself, allowing you to create custom shaped food storage bags to freeze food or to make individual portionsIt also works well around the house or at work to keep things clean and protectedPress'n Seal® wrap is simple to use and easy to handleThe wrap is BPA free and microwave safe