Question: What material is the closing lid made of ?
Answer: This is of airtight BPA Free Virgin Plastic Food grade leakage proof material

Question: This is microwaveable
Answer: No.

Question: Does the tumbler is made of steel or plastic?
Answer: Steel

Question: Can food be heated in the microwave?
Answer: Its dishwasher safe - 100% food grade quality spill proof- not recommended for microwave

Question: Is it insulated to remain hot for 6/ 7 hours
Answer: No it does not. It is a steel container, with a insulated bag.
So max 2 hours

Question: Can i purchase only lunch bag? Without boxes
Answer: NO, With lunch boxes

Question: How much is the warranty ? And how to claim ? One of the box cracked for me.
Answer: 1year

Question: Hou much weight?
Answer: Very compact

Question: One steel bowel broken in one month can I return this lunch box ?
Answer: Yes