NanoNine brings to you high quality stainless steel lunch box in a high quality insulated PUF container with multipurpose usage. 100% Stainless steel with special insulation which keeps food hot / cold for 6 hours. Eat fresh and warm lunch at office or Use the outer box for storing Ice cubes while going for a picnic. MULTI-USE : The outer insulated box has stainless steel on both sides which can be used as on ICE Box or carry any food item without the containers like IDLIs, Samosas etc. for small party with your friends at office or picnic.