Elmer's Heavy Duty Tri-Fold Display Board, White, 36x48 Inch (Pack of 12) Self-standing tri-fold display board Double-ply, corrugated construction provides durability Perfect for school projects or business presentations Smooth white surfaces for markers, paints, and adhesives Made of 100% recyclable materials Dimensions: 36 x 48 inches (H x W) open, 36 x 24 inches (H x W) folded