Made of lightweight and unbreakable aluminum, this 850 ml bento box is designed to last and designed in Japan. The closure is solid by joints and fasteners. However, keep it flat during transport! You can use it in the office or on weekends outside. Attention, this product is not suitable for the dishwasher, microwave or grill and when washing avoid using abrasive brushes. It exists in 5 colors: Silver, Blue, Black, Gold and Green. Order a set of at least three pieces per color/ie: 1x3, 2x3, 3x3... Design made in Japan.