Round storage containers are commonly made from glass, stoneware, stainless steel, iron, polypropylene, and other plastics.
Features that help preserve freshness and prevent leaks include airtight lids with locking tabs, twistable or leakproof closures, snap/click seals, and tight-fitting domed lids.
Large round containers are typically wide and domed to accommodate whole pies or a 12-inch pizza without compressing the food, and they use a tight-seal lid to keep items secure during transport.
Sets range from single canisters to small multi-piece packs; examples include single-piece canisters, 2-piece sets, 4-piece and 6-count sets, and multi-unit packs such as 2-pack chafing sets.
