Elmer's Premium Foam Tri-Fold Display Board, 3/16 Thick, 36" x 48", Black, Single - Walmart.com
Amazon.com : Black Tri-Fold Presentation Board 36" x 48" Corrugated Tabletop Display Exhibition Board Lightweight and Portable with Smooth Surface Great for School Projects and Business presentations - by Emraw : Office
Two Cool Tri-Fold Poster Board, 36 x 48, Black/White, 6/Carton | Emergent Safety Supply: PPE, Work Gloves, Clothing, Glasses
Amazon.com : 3 Pack Trifold Poster Board 36 x 48 Inch Black Trifold Presentation Board Large Science Fair Display Boards Lightweight Project Board Portable Exhibition Board for School Science Office Project : Office Products
Two Cool Tri-Fold Poster Board by Eco Brites GEO27135 | OnTimeSupplies.com