Perfectly superimposable and juxtaposable elements (elements of the same format) to make sorting walls. Italian shape to facilitate document introduction. Stable : exclusive horizontal grappling system assuring homogeneity and stability of the whole. Strong : shockproof polystyrene. Elements cast without solderings. Practical : label holder in front (labels included). Edge in front adapted to 19 mm Dymo titler tapes. Interior dividers adjustable on 3 positions facilitating ordering. Capacity: for A3-documents or twice 23 x 33 cm with removable dividing element. Useful dimensions: H 11 x W 47 x D 35,5 cm.