Kobo Aizawa ｜ Slim 2-tier rectangular lunch box

This is the "Slim 2-Tier Rectangular Lunch Box" made by Aizawa Workshop, a manufacturing studio in Tsubame City, Niigata Prefecture, which is world-famous for its stainless steel products. Its slim, long shape makes it easy to carry in your bag. The two tiers each have their own lid, so they can be used separately. The lid is securely fastened with a silicone rubber gasket and rubber band, so you can carry it safely even when cooking strong-smelling or slightly juicy dishes.

Click here for a list of Kobo Aizawa products

Slim shape

Because it has a long, slim shape, it can be put into a bag with a narrow gusset without tilting. In addition, the side dish has a partition, making it easy to serve, and is recommended for those who do not want to mix rice and side dishes. Each container has a capacity of about 350ml, making it the perfect size for women and children. Both the top and bottom containers have separate lids, so you can use just one container or use it in a variety of ways.

Comes with gasket to prevent leakage

Each lid has a silicone rubber gasket, and the two-tiered lunch boxes are firmly secured together with a rubber band. Even if you put in a slightly juicy dish, it is unlikely to spill, so you can carry it around with peace of mind.
*It is not completely sealed, so if the food is very juicy, some liquid may leak out.

Corners are easy to clean

The corners are rounded, making it easier for the sponge to reach every corner and leaving no residue behind.

Made from durable stainless steel

Made of durable, rust-resistant 18-8 stainless steel. It is resistant to the odor and color of ingredients, so you can use it for a long time.
We also have rectangular lunch boxes.
[From the left: rectangular lunch box 2-tier, rectangular lunch box slim 2-tier]
Founded in 1922, Atelier Aizawa is located in Tsubame City, Niigata Prefecture, which is world-famous for the production of stainless steel products. They create products with a focus on beauty and functionality without decoration. They continue to flexibly create high-quality products that suit the needs of modern users.
Click here for a list of Kobo Aizawa products


Its slim, elongated shape makes it easy to fit in your bag. The two sections each have their own independent lids, so you can use them separately.

[Product name] Square lunch box, slim, 2-tier
[Quantity] 1 piece
[Size (approx.)] W200 x D65 x H85mm
Capacity (approx.): 350ml x 2
Weight (approx.): 410g
[Material] Body and partition: 18-8 stainless steel, packing: silicone rubber
[Country of Origin] Japan
[Notes] Dividers and rubber bands included

●Before you purchase
・There may be small scratches, black spots, unevenness in the joints, etc. Please note that this is due to the manufacturing process.
●Precautions for use
Dishwasher: Yes, Warmer: Yes, Microwave: No
- (Before use) Wash thoroughly with dishwashing detergent before use.
After use, wash off any dirt using dishwashing detergent or similar, then wipe off any moisture and dry.
-For regular maintenance, wash with a sponge and detergent.
・Please avoid using steel scrubbing pads or abrasives as they may cause scratches.
・Avoid using or storing highly acidic foods as this may cause corrosion.
Do not store food for long periods of time.
-It is not completely airtight, so if you put something with a lot of moisture in it, the juice may leak out.
・If the food is hot, allow it to cool before closing the lid. (The lid may become stuck.)
After washing, dry thoroughly without closing the lid immediately.
・Please read the instruction manual carefully before using.