Wall sorter FLAT, for format DIN A4, fill height 9 mm, storage compartment green. Simple plug-in system with a base module and colored storage compartments that can be arranged in a shingle pattern on the wall and expanded as needed. Ideal for sorting individual A4 papers, receipts, brochures, work instructions, routing slips, forms, etc. Prioritization and visual differentiation through the combination of various colors, e.g., also suitable for a KANBAN traffic light system. The wall sorters offer maximum flexibility due to the variable number of storage compartments. With additional labeling clips, the compartments can be easily marked according to the stored documents, see accessories. The modular wall sorting system FLAT efficiently supports the structuring of workflows and provides maximum flexibility. After wall mounting the base module, a well-thought-out plug-in system allows for the individual configuration of the storage compartments with a fill height of 9 mm, available in five colors. With the labeling clips in two different sizes, which can be attached to the individual storage compartments using a simple plug-in system, stored documents can be labeled and organized as needed.