The superiority of lock and lock nestables-lock and lock nestables are very convenient to go from refrigerator to tabletop with clean and attractive designs. The locking mechanism of lock and lock nestables-the locking hooks of the wings on the lid lock securely with the slightly raised rim around the container. It provides equal pressure on all four sides of the hollow silicone seal creating an unique locking system that ensures air and water tightness. Save space-lock and lock nestables reduce space during storage.