Three-layer portable stainless steel lunch box, thickened heat-insulating PP outer shell for airtight preservation, microwaveable, suitable for home and outings.

【304 Food-Grade Stainless Steel Inner Liner】The inner liner is marked with SUS304 stainless steel, ensuring safety, corrosion resistance, and rust prevention. The smooth inner wall is easy to clean and prevents harmful substances from seeping out when storing meat or vegetables.

【Flexible 1-3 Layer Assembly + Single-Layer Divider】The single-layer box features a double-layer divider design to prevent odor mixing. The number of layers can be freely combined to adjust the capacity and meet different meal needs. It can be stacked for storage when not in use, saving space.

【Silicone Sealing Ring, Leak-Proof Sealing】Each layer is equipped with a thickened silicone sealing ring and a snap-lock, preventing leaks even when tilted or inverted. It's easy to carry and won't spill or soil other items.

【Top Lid Ventilation and Pressure Relief Valve】The valve opens before heating to release hot air, preventing the box from expanding and food from spilling, ensuring safer microwave heating.

【PP Material Microwave Heating Insulated Outer Box】The high-temperature resistant outer layer effectively prevents burns. Simply remove the lid to microwave and heat food quickly—convenient and fast, ideal for busy people.

【Hidden Handle + Built-in Folding Spoon】The hidden top handle makes it easy to carry; the lid has a built-in spoon compartment, so you don't need to carry cutlery when you're out and about.

【Dimensions】: 12.5 x 12.5 cm (L x W), 6 cm high per layer, 26 cm high for all three layers