Only suitable for commercial use. 1.2 mm thick Welded joints with round base Wok ring necessary for residents Protective coating must be burned off before use. Due to the nature of carbon steel, the wok needs to be seasoned every time after cooking. Otherwise it would rust. 14" Japanese style wok is recommended for restaurant/commercial use only. 1.2mm thick with welded joints. Protective coating must be burned off before use. Because of the nature of carbon steel, the wok need to be seasoned each time after cooking. Otherwise it would be rusted. To Season a new wok Step 1. Wash, rinse & dry. Thorough scrub the wok using s steel scrubber with soap to get rid of the coating oil. Step 2. Place wok on stove top in medium high heat. After heating the wok about a minute, add the oil (2 tablespoon cooking oil). Step 3. Wipe the oil all over the wok with a dry paper towels. Use cooking tong and paper towel to apply the oil all over the wok. Step 4. Let it cool off and wipe off excess oil. Repeat 2 to 4 step up to 3 times for a better seasoning.