Lodge Pro-Logic Cast Iron Wok : 14" pre-seasoned cast iron wok has a perfectly rounded interior with a flat exterior bottom for use on all types of cooktops. Lodge's Pro-Logic preseasoning process penetrates the metal's pores thoroughly and uniformly, so it looks and performs better than traditional home seasoning. With the same even heating, superior heat retention, and inherently stick-resistant finish of traditional cast iron. Oven safe. Made in the USA.