SIZES listed are the' EXACT SIZE' of the IMAGE/WORDING from edge to edge. I ADD 1/2-1" border upon cutting. 7.5 mil Mylar is as thick as 0.2mm cardstock. Mylar Stencil Material is a plastic film-like material . Stencil can be used with any type of paint on most flat surfaces-Wood, Fabric, Glass, Metal. Concrete etc. Great Quality, Durable, Reversible, Flexible & Reusable (when cleaned properly). Depending on the size ordered; the stencil may ship rolled up in a boxed tube. If you encounter any problems with your item please contact us. For stenciling techniques & tips; please watch YouTube videos on how to do stenciling. ADHESIVE SPRAY/TAPE is RECOMMENDED to HOLD this type of MATERIAL FLAT. Please use your own discretion & experience when using spray paint. DAMAGED ITEMS - Please send us an image of both the stencil & the packaging. RETURNS MUST BE RETURNED in their 'ORIGINAL PACKING within 30 days of purchase. A restocking fee may apply. If you are needing SINGLE USE SELF- ADHESIVE VINYL please send us a message for a quote. We can cut up to 22.5" in diameter x 40" in lenght on single use vinyl. Thank you for viewing our listings.