Oversize Calendar Corrugated Plastic Blank Yard Sign Board Coroplast Sheets for Signs (4 mm , White) - Pack of 6 : Amazon.in: Office Products
Expanded PVC Sheet - 10 mm - White
Amazon.com: Black Corrugated Plastic Sign Blanks Sheet 4mm x 18" x 24" (100 Pack) : Industrial & Scientific
Amazon.com : Corrugated Plastic Sheet for Indoor and Outdoor Use - 3/16 Inch Thick Poster Board, 24x36 Inches - Pack of 2 Black Plastic Board Sheets - Waterproof Coroplast Sheets and Lightweight