Double-Layer Modular Design: The unit features a two-tiered stacking rack setup. You can use both layers together to cook up to 14 eggs simultaneously, or remove the middle section to use it as a single-layer cooker for up to 7 eggs.Safety Shut-Off: Equipped with an automatic built-in dry-boil protection mechanism. The machine completely shuts off power once the added water evaporates to prevent overheating.