KOSOX 475ml Japanese Modern/Traditional Blue Sushi Box / Lunch box / Bento box 475ml, Excellent size with Double layer for storage Sushi Microwave, dishwasher, & freezer safe (microwave without lid& Tray) ECO-FRIENDLY,BPA-free & SGS approved - All food grade materials Double stack encourage variety and portion control. Enjoy fresh Sushi on the go & support healthy lifestyle choices Durable, reuseable, the sleek Sushi box solution for school, work and travel