Le Creuset"s high quality Tri-Ply line is well known for its masterful blend of user-friendliness and professional performance. The line contains an aluminum core between two layers of premium, magnetic stainless steel, and is thus suitable for induction use as well as on all other cooktops. This layering is present throughout the entire product, ensuring excellent conduction and an ability to cook most foods on medium and low heat settings, which saves energy. Tri-Ply is capable of withstanding oven temperatures up to 400 degrees Fahrenheit, and drips and spills are easily avoided with specially designed pouring lips. Storage is easy as all items are stackable, and specially designed rest handles provide a secure place to rest the lid while checking the food. From this prestigious line comes the two cup butter warmer. This 3 cup model, though smaller in size, is modeled after the Le Creuset saucepans and has clearly marked measurements on the inside of the pan.