Foam Core Backing Board 3/16" White 1 Side Self Adhesive 30x40- 50 Pack. Many Sizes Available. Acid Free Buffered Craft Poster Board for Signs, Presentations, School, Office and Art Projects - Walmart.com
White Foam Board | BLICK Art Materials
Elmer's® 30 x 40 Foam Board White 3/16" Thick (25 sheets)
Amazon.com : Kathfly 10 Pcs Self Adhesive Foam Boards Bulk 40 x 30 Inch Large Foam Core Board Giant Foam Poster Board with 1 Side Adhesive Blank Board for Presentation School Home
PerKoop 30 Pcs Foam Boards 30" x 40" White Foam Core Backing Board 3 mm Foam Poster Board for Presentations School Signboards Arts and Crafts Framing Display - Yahoo Shopping
Amazon.com : Union Premium Foam Board 30 x 40 x 3/16" 10-Pack : Matte Finish High-Density Professional Use, Perfect for Presentations, Signboards, Arts and Crafts, Framing, Display (White, 30x40) : Office Products