Artskills 36" X 48" Tri-fold Corrugate Project Display Board - White : Target
Amazon.com : Trifold Poster Board 36" x 48" White Presentation Board Science Fair Display Boards - for School, Fun Projects and Business Presentations - by Emraw : Office Products
The Teachers' Lounge® | Presentation Board, Blue, Single Wall, 48" x 36", Pack of 6