The 2 steel handle model is the original wok design. This wok is a heavy-duty 14-gauge carbon steel. The flat bottom is designed to sit directly on an electric coil stove or grill to take advantage of all the heat since wok cooking is done with high heat. The flat bottom wok also works very efficiently on a gas stove. The flat bottom wok is available in 12″, 14″, and 16″. Wok measures at least 4″ in depth. If cooking with gas, the same wok is available in round bottom: 12″, 14″, 16″ (for the home), and 18″, 20″, 22″, 24″, 26″, 28″, and 30″ (for commercial use). Must be seasoned. Made in USA.