1)Pure iron,good healthy 2)Ultra-thick bottom,strong & durable 3)Suitable for all stoves Pure Iron Chinese Wok Size: 30, 32, 34cmThickness: 2.2-3.0mmFeatures:1) Made with pure iron for durable use2) Suitable for induction stove, gas stove and electric stove3) Heat transfer quickly, heat even distribution, saving time and energy4) Easy to clean, environmental protection, healthy. Pure Iron Wok