I received this as a gift, but I'm selling it because I don't use it. I opened it for the photos, but it's a brand new, unused item. Quoting from the official website below: -- Product Description The "CORELLE Fry Pan" series, the first frying pan series from the American kitchen brand "CORELLE." Thanks to the unique Dura-Nano technology, the non-stick performance lasts. This frying pan comes with an impressive 10-year warranty. It has a 3-layer structure: stainless steel on the outside, aluminum in the middle, and stainless steel on the inside with titanium, zirconium, and ceramic powder fused using ultra-high-temperature lasers. This creates microscopic irregularities that reduce the contact area with food, making it less likely to stick. Because the metal itself is processed, it's PFAS-free and silicone oil-free. Metal utensils and high-heat cooking are also possible, allowing you to enjoy professional chef-like flavors at home. Please try this completely new frying pan. Product Specifications ■Size (approx.): W293 x D511 x H92mm (H53mm *frying pan only) ■Weight (approx.): 1.2kg ■10-year warranty (*Warranty applies if food does not come off even when using strong chemicals.)