locking mechanism with silicone lid seal ensures air-tight and leak-proof closure | Ideal for storing food in the fridge, freezer or pantry and also perfect for transporting meals to school or work | Space-saving stackable and nestable design | Airtight lock and fit multipurpose food storage Containers and maintains excellent freshness in food. | Dishwasher, microwave and freezer safe | Can hold both dry and semi-liquid food including rotis, rice, dals and curries