The sizes for purchase are based on the longest size of the design (either top to bottom, or side to side).Please see picture for the size of the stencil itself.The item in the picture is the 4″ version. The other sizes are proportionate.All stencils are made out of food safe plastic. The plastic will be white.The item is hand wash only. Using a dishwasher will ruin the product.Avoid prolonged exposure to any heat source and moisture.All packages in the United States will be shipped using the USPS. All international packages will be shipped with either the USPS or the UPS.