Miyoshi Seisakujyo Square Integrated Ice Pack Square Lunch Box W Bento Box 2 Tiers Light Gray X X 12 Cm 1000ml with Partitions Lunch Box for Women and

The "GEL-COOL" series has a cold gel inside the lid. Freeze in a regular freezer overnight. After packing your food in the morning, just set the frozen lid. Remove the lid and pop it in the microwave! It's safe and delicious to eat. Product size: Approx. 17.8 x 8.7 x 12cm Capacity: Approximately 500ml x 2 tiers Product weight: 0.547kg Materials: Main body and partitions - polypropylene, cold storage lid - ABS resin, inner lid - SEBS resin thermoplastic elastomer, rubber band - rayon, polyester, rubber *Only the main body and partitions can be used in the microwave and dishwasher. [Shipped by Amazon.co.jp, sold by Amazon.co.jp This product is an official product from the "GEL-COOL" manufacturer. ]