Happycall 5 Layer Diamond Nonstick Party Wok With Lid, 13inch, Stir Fry Pan, Jumbo Cooker, Deep Frying Pan DURABLE, LIGHTWEIGHT & NO HOT SPOTS - Quarter-inch thick, 2500-ton forged aluminum construction. PFOA-free NONSTICK - 5-layer Diamond Nonstick Coating DISHWASHER SAFE, EASY CLEANING - Eco-friendly, Anti-Scratch, Easy Cleaning Porcelain Exterior NON-RIVETED - No bacterial build-up / SPECIAL BANDING METHOD - Mess-free pouring / Works on ALL COOKTOPS except induction Works on ALL COOKTOPS except induction