Swiss Diamond Round Bottom Wok Covered Swiss Diamond wok, with extra thick base for optimum heat storage and conductivity. This Swiss Diamond Wok has a vented metal-rimmed heat tempered glass lid. A combination of Eastern cooking methods and Western technology creates a traditional shaped concave bottom wok, with a thick built-in stable bottom for any type of range. This Swiss Diamond Wok is perfect for stir-frying, searing, deep frying, braising, steaming and slow cooking. Full round cooking surface shape that allows food to brown and sear quickly on flat burners without a separate ring base. Perfectly flat base for use on all ceramic, gas and electric cook tops. Swiss Diamond Wok Features: * NonStick PFOA Free Cooking Surface * Cast Aluminum * Made in Switzerland * Dishwasher Safe * 200,000 diamond crystals provide a nonstick surface * Tempered glass lid with metal rim. * Ergonomic handle design for comfort and balance. * Each piece is oven safe up to 500°F. * Heavy duty, professional quality 6 mm pressure cast aluminum body that will not warp * Diamond crystals and thick body allow for quick, even heat distribution throughout each piece, from the center to the edges * Swiss Diamond Cookware FAQ