Vintage 1981 Hefty Freezer Containers 1 Qt Set of 3 NIP Mobil Oil USA NOS

New old stock (NOS) vintage Hefty plastic freezer containers from 1981. This is a sealed 3-pack, each with a 1-quart capacity. Made by Mobil Chemical Company (Mobil Oil Corporation). Heavy-duty plastic with snap-fit lids designed to prevent leaks. Dishwasher safe and freezer ready. Made in the USA.