Stainless steel with lid and silicone seal, stainless steel special airtight containers which uses silicon which keeps food items fresh longer. Deal to carry meals / fruits or any food items to work, travel, school, college outing, hiking etc. 100% leak proof containers for keeping food from spilling, stackable design for easily storing the containers on top of each other and the pioneering clip mechanism. Airtight + leak proof steel containers you can carry all types of food including curries, rice, sabzi, daal, cut vegetables and fruits and more.