EnviroBoard Big Checks 18"x36" ?'s firstname.lastname@example.org Big Checks that are printed on enviroboard are recyclable just like cardboard. They are made out of recycled material and can be disposed of in a cardboard recycle bin. If your business is looking to show off the fact that you are going green, then this is the check for you. You can write on this material with a permanent marker, so if you have any spaces you need to leave blank on your filled in check, then you can leave them blank and fill them in later (such as date or amount). Blank checks are commonly used to save money, but make sure that you have somebody with good handwriting to fill in the check because the printed version looks more professional.