Aluminum alloy frame + acrylic panel: Aluminum alloy frame wrapped with acrylic panel, sturdy and durable, beautiful and transparent, double-sided design, front and back can prevent the placement of materials. Adjustable height: By adjusting the three safety snaps, the height of the data rack can be adjusted to meet the needs of different scenes. Foldable design: Free telescopic design, open when in use, fold up when not in use, save storage space, easy to carry and transport. Perfect for: magazines, brochures, flyers, catalogs and other marketing materials and printed literature, A4 paper size is 29.7X21 cm (11.7X8.3 inches). Service: If you have any questions, please feel free to contact us via email.