This All Clad Cop-R-Chef Butter Warmer combines versatility and style to give you unparalleled performance in the kitchen. This small pan is ideal for creating delicate sauces, melting butter or chocolate or warming small amounts of sauces and liquids. It features a pure aluminum core, sandwiched between a layer of heavy gauge copper on the outside, and an 18/10 stainless steel inner layer. This unique combination of metals gives you better heat distribution while cooking. If you're looking for form and function in the kitchen, look no further. Manufacturer's Lifetime Warranty. Holds 1/2 quart.