Our stencils are made out of a food safe plastic called Mylar that is 10 mils thick, which is 0.010 inches thick. It is thin, flexible and easy to use. These products are great for airbrushing but has many other possible applications. All stencils will be cut using a laser printer at the time or purchase. Our laser printer allows us to cut fine details to provide our customers with a unique and intricate design. The sizes listed pertain to the size of the design height. Please see the picture above for an example of how it will measure. We have provided several sizes for each stencil design along with the option of purchasing all sizes. The stencil displayed is our 4 inch size. The stencil itself is about 5 1/2 inches x 5 inches. The design is 4 inches x 4 inches. All other sizes are directly proportionate to this size. For orders under and equal to 30 items please allow 48 hours for processing. For orders over 30 items contact us for probable processing time. All items will be shipped via the USPS (United States Postal Service). All international orders will be shipped via the UPS. All international orders will be shipped via the USPS or UPS. Since the US post office does NOT guarantee their ship times, neither can we. Purchasing does NOT guarantee it will get to you in time and it does NOT come with a money-back guarantee.