The Tupperware Blue Modular Mates include three #1620-2 & one #1619-4 square storage containers.  are a vintage set from the 1990s. This medium-sized square container has an airtight, shatterproof design with a snap-tight hinged lid. With a capacity of 11 cups and 5 cups, these original Tupperware products are perfect for storage and organization in the kitchen. The retro style and signature blue color make it a collectible item for Tupperware enthusiasts.