Retractable folding lunch box bento box $ 7.56 Material: Silicone Shape: square Microwave: available Applicable people: adults Product Name: Single Grid Silicone Folding Lunch Box Material: FDA certified food grade silicone + environmentally friendly PP plastic Features: The silicone part is resistant to cold and hot temperatures from -40C to +230C, and the plastic handle part is heat resistant to 110C and can be reused