Natural Swiss Cheese Slices. 16 Thin slices. New fresh-lock seal: Easy to open & reclose. Excellent source of calcium for strong bones and bodies. Good source of protein. Only Kraft Cheese has the Fresh-Lock seal with the blue and white double-track zipper. Wide seal is easy to open and reclose. Double security to keep your cheese fresh-tasting. Blue and white color zipper lets you know the bag is closed.