7-layer material up to the edge, 2.3 mm thick. The layered material with a heat-conducting core ensures excellent and even heat distribution across the entire surface of the wok. This unique combination of three alloys offers up to 30% more efficiency on induction. Additionally, it ensures that the bottom remains flat, allowing you to switch between heat sources at any time. Silvinox surface treatment for maximum durability. Thanks to the small, flat bottom, it is suitable for all types of stoves, including induction cooktops. No lid included. Dishwasher safe.