A practical and reliable set of boxes for storing and carrying food. Made from durable glass and plastic with a quality silicone lid seal – airtight and waterproof. Valve for ventilation and dehumidification of food. Food stays fresh for longer, retains its aroma, does not leak when handled. Suitable for the refrigerator, freezer, microwave oven and dishwasher. -20°C to 110°C. Note: handle products made from glass with care and do not use when cracked.