Yard Sign Blanks, Heavy Duty 6 mil Coroplast, use single or double sided. Completely reusable, sold in sheets of ten, 18″ x 24″. Custom sizes available, please ask. Priced at $1.70 each. Make your own yard signs with our blank sheets. Use with repositionable adhesive back polypropylene or run your materials through the Xyron 2500 cold laminator and apply an adhesive backing. Sheets er 6 mil heavy duty coroplast and won’t bend in the wind. Sold in sheets of 10. Purchase with step on Metal H Step Stands.