Foamcore is typically mounted on an easel for presentations or can be used for signs, posters, etc. It is made of a relatively delicate material and is best for one time use; it can last longer with proper care. This product is not waterproof.Upload Files:You will be uploading your file(s) during checkout, After we receive your uploaded file(s), we will review each file. If we find any problems with your files, we'll contact you. You will receive a proof within the next 24hrs after placing your order. Please use our templates to build your files correctly. Important: Prices include processing one set of uploaded files and creating a single proof.Resolution: All file formats should have a suggested DPI size of 150-200 dpi (dot per inch) resolution at 100% of the final print size. Images designed for the web typically cannot be used for printing as they have a low screen resolution of 72 dpi. Print images need to be created at 150-200 dpi or there will be a substantial drop in the image quality.Color Mode: All color artwork and/or images must be provided in CMYK (cyan, magenta, yellow, black) color mode. All black & white artwork and/or images must be provided in grayscale color mode.Bleed: For business cards and postcards, please build your print-ready digital files by adding 0.1" bleed to each dimension (or 0.05" bleed on all four sides). e.g. 36"x 48" business cards with bleed is 36.25"x 48.25" Please design your files on our templates to ensure proper bleed.