The containers themselves are usually made of glass. Lids commonly come in plastic, wood, or glass. Plastic lids are often used when airtight, leak-proof seals or locking tabs are needed; wood and simple glass lids are more commonly cover-style for pantry or countertop display.
Some containers are designed to nest inside one another to save cabinet space, while many sets offer stackable or modular shapes that stack neatly for organized storage in pantries or refrigerators.
Glass bases are described as stain- and odor-resistant. Some plastic lids are made with stain‑resistant treatments to help resist discoloration and lingering smells, though performance can vary by product.
