BOTTOM VESSEL IS THICK GAUGE AND HIGH GRADE FOOD QUALITY STAINLESS STEEL IDLY PLATES ARE THICK GAUGE 202 GRADE FOOD GRADE STAINLESS STEEL WITH EXTRA DEEP CAVITIES MIRROR FINISH STURDY HANDLES AND KNOBSGAS AND INDUCTION FRIENDLY BOTTOM VESSEL AND LID CAN BE USED FOR ANY OTHER COOKING PURPOSES Steamer Plate and Dhokla plate are well designed to prepare north Indian food like modak momos etc and south Indian like idyappam puttu kolukattai etc Steam dals like chana dal moong dal etc for children and cooking purpose Steam vegetables leaves potato pudina and many more Use Dhokla plate for dhokla and thattu idli