Bento Lunch Box Insulated Lunch Box Food Containers Stainless Steel Double-layer Insulated Leak Proof Seal Drum 2.0L

Name: Insulation lunch box Material: Stainless steel Features: material safety, easy to clean, wear and durable, detachable Function: long heat preservation, preservation Suitable for the venue: family, school, office, outdoor Warm tips: 1. Wash with hot or cold water first, then pour in. Do not use steel balls. Next, fill with hot or cold water to ensure better insulation. 2. To avoid rust, do not seal when the lunch box is not completely dry. 3. Do not use carbonated beverages for long-term filling to extend the life of Insulation box.