Round Styrofoam Cake Dummy (6 inch) Material: FoamSize: Diameter: 15Thickness: 7Package Content: 1 Cake Mold Package Content Is More Than The Package Content Is Not Included In This Product. Note: The color and size of the actual item may vary slightly from the color and size on the website, depending on the lighting and your display. The margin of error for the measurement is 1-3.