Sheet metal is one of the most basic building blocks for metalsmithing and jewelry making. Using techniques like cutting it to shape, heating it with a jeweler's torch, using cold connections on it and setting stones in it, one can transform it into a piece of art. The creative possibilities for sheet metal are endless!This listing is for one sheet. This metal is Aluminum, the thickness is 22 gauge and it is a 6x6" inch square.Aluminum is a classic metal used especially for letter/design stamping techniques. Its soft malleability lends itself well to working with design stamps, and the bright shiny silver color can be polished to a high shine. Because aluminum is so soft, care should be taken in finished jewelry pieces so that the metal is not scratched or dented. It's sometimes used as an inexpensive alternative to sterling silver and fine silver.