Helen Chen Asian Cookware and Housewares. 14" Wok with Excalibur surface. Excalibur is a Premium Nonstick reinforced with stainless steel. Through a unique process the Excalibur becomes an integral part of the cookware surface. The end product has the strength of stainless steel and the quick release of a non-stick. 2mm.Features* Stir-fry, stew, saute, deep fry, braise, and boil * 2mm* Stay cool quadruple-riveted handle plus easy-lift helper handle* Flat bottom fits securely on any stovetop: gas, electric or induction* Professional grade carbon steel for quick and uniform heating* No need to "season" -ever