1 ounce jar Easy to use Finely milled for outstanding quality enhancement For non-porous, non-ferrous surfaces Sirchie&';s most popular powder color in magnetic form is finely milled for outstanding quality enhancement. This easy to use powder can be utilized on a wide variety of non-porous, non-ferrous surfaces.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }