12x18 4mm Corrugated Plastic Sheets 2 Pack Green Waterproof Lightweight, Blank Boards Double Sided for Lawn Signs, Garage Sales and Real State. Various Sizes, Colors by WholesaleArtsFrames-com - Walmart.com
Correx Corrugated Plastic 4' x 8' Sheets for Jobsite Protection In-Stock at Kuiken Brothers - Kuiken Brothers