These 5.5 oz. portion cups are made from food-grade, BPA-free polypropylene with crystal-clear transparency and crack resistance. Each set includes a matching airtight lid made of durable PET plastic that seals with an audible snap to prevent leaks and preserve freshness. Designed for practicality, the cups stack neatly for compact storage in pantries, freezers, or cabinets, and their uniform size supports consistent portion control. They work well for both home and commercial settings-ideal for serving Jello, yogurt, dressings, condiments, soufflés, or party samples. The separate packaging of cups and lids in one box simplifies organization and restocking. Their lightweight yet sturdy construction holds up during transport, whether used for school lunches, road trips, catering setups, or buffet lines. No assembly or special tools are needed-just fill, seal, and go. They’re freezer-safe, dishwasher-safe on the top rack, and suitable for cold or room-temperature contents but not intended for microwave or oven use.