The ultimate paper tray organizer system for paper, notebooks, magazines, craft paper, notes, binders, & more. The Thinkspace Configurable Paper Tray System includes a set of 12 paper trays & 3 lids to customize & fit into any space necessary. Easily snap together trays horizontally or vertically in any combination to suit any space. Store on desktops, countertops, or shelves to maximize space to organize a workspace, home office, or classroom. The minimalist gray tray system is perfect for any professional office. Literature Sorter Type: Open Front; Number of Compartments: 12; Compartment Size: Configurable; Material(s): Polystyrene.