Premium grade 18-10 stainless steel mirror polished inside and outside for shine look and easy clean;Tempered glass lids makes viewing food easy from start to finish;Impact bonding technology is advanced method to apply aluminum disc to the bottom of cookware for even heat distribution;Suitable for all cooking source electric and gas stove or glass and ceramic, bottom is magnetic stainless steel designed for induction stovetop;Stay cool silicone wrap handle give comfortable grip, and handle is riveted for strength and durability