Extremely thick, 100% recycled cardboard material, paper-covered filing system with unique 180° rotating lever mechanism that makes it much easier to load and unload documents into the filing system. The A/3 size can be an ideal solution for anyone working with larger paper sizes, such as architects, art or engineering students. Large, glued spine label to indicate contents. 5-year guarantee on the mechanism. Size (A/3 landscape): 77 x 318 x 480 mm. Spine: 77 mm. 12 pieces per box.