heat sealing aluminium foil is for storing , ... Size:16ft,20ft,25ft,37.5ft,50ft,75ft,200ft heat sealing aluminium foilSize:With:250---600mmThickness:9---26micLength:3 ... help keep your food fresh, store food wrapped in foil. Also helps prevent transfer of flavors and odors ... before cooking. No need for messy scrubbing. heat sealing aluminium foil widely used in cooking, freezing, baking and storing.