The ultimate paper tray organizer system for paper, notebooks, magazines, craft paper, notes, binders, and more. The Thinkspace Configurable Paper Tray System includes a set of 12 paper trays and 3 lids to customize and 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.