Pack of 10 16x20 Cork Adhesive Foam Boards for DIY Bulletin Board 1/2" Thick | eBay
Amazon.com: Mat Board Center, Pack of 10, 16x20 Self Adhesive Foam Board for Picture and Poster Mounting, Lightweight White Color Foam Board for Crafts, Artworks, School Projects, 3/16 inches Thick : Office Products
Amazon.com: Golden State Art, Pack of 10, 3/16" Thick, 16x20 Black Foam Boards (16x20, Black) : Arts, Crafts & Sewing
Amazon.com : 15 Pack Foam Board 16"x20"x3/16", White Foam Board with Hard Paper Outer, Foam Core Baking Board for Project, Acid Free Sign Board Poster Board for School Project & Art Works,
Mat Board Center, Pack of 10 1/8" White Foam Core Backing Boards (16x20, White) - Walmart.com
Foam Board White 3/16in 16x20 | plazaart.com
Set of 25, Foam Board Backing Board 1/8" Thick 5x7 8x10 11x14 16x20 | eBay
Jerry's Pro Foam Board Box of 25 16x20 (3/16 In Thick) White | Jerry's Artarama