relay chief short 40 by 60 foam board sufficient bucket exempt
40" x 60" Bienfang Foam Board - White - Walmart.com
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