【Insulation, Thermal Retention】 This lunch box has a thermal insulation function, allowing you to keep your warm meals warm for a long time. 【Compact Design】 With a compact size of approximately 16cm in diameter, it's convenient to carry around. 【Included Thermal Case】 It comes with a dedicated thermal case, so you can carry it with peace of mind even when you're out and about. - Color: Black - Material: Plastic, Exterior: Stainless Steel - Type: Insulated Lunch Box - Size: Approximately 16cm in diameter - Accessories: Thermal Case It has two tiers. It can be widely used for cold udon noodles in the summer and beef bowls in the winter. Thank you for viewing.