This is a very unique design as the cups are screwed together to secure with a lid fastened on the top cup for keeping clean.
The product is a vintage 1950's American Thermos Trade Mark HotAKold cups and lid that can be stacked together using 5 screws. The chrome plated design gives it a sleek and retro look, making it a collectible item for those interested in metalware from the mid-20th century. The Thermos brand and iconic design add to the nostalgia and appeal of this unique piece. Cup size is 2.5" X 2”