These containers typically feature three separate tiers or compartments that stack and clip together, allowing for different foods to be stored separately.
They are designed for portability, often featuring a handle and secure locking mechanisms, making them suitable for office, school, travel, or picnics.
Materials vary, but common versions feature a stainless steel interior and a plastic outer shell, with some offering insulation to maintain food temperature for a few hours.
Capacities generally range, with many having a total capacity of around 1800ml to 2200ml.