FLAT or ROUND bottom pow wok with metal hollow handle. Heavy gauge carbon steel, easy to season, gets better with age and use and becomes naturally nonstick. FLAT bottom can be used on gas, electric coil stoves or grills. ROUND bottom not recommended on glass top or induction stoves. Come in 10″ 12″ 14″ and 16″, 14 gauge. Please specify flat or round bottom. Add a wok ring to stabilize round bottom wok on gas stove. This wok is the preferred wok for many Chinese chefs, caterers; a best-seller!