Offers wall-mounted storage to help clear off your flat work surfaces Durable plastic construction can withstand daily use. 5 transparent sleeves let you keep projects neatly separated. Holds up to 5 lb without damaging mounting surfaces. Fits most partitions or cubicle walls from 1 1/2in. to 3in. thick. Attaches to most tackable surfaces. Greener choice - contains 72% postconsumer recycled content. Fellowes(R) Partition Additions Waterfall Sorter, 19 3/4in.H x 12in.W x 1/4in.D, 72% Recycled, Clear/Dark Graphite is one of many available through Office Depot. Made by Fellowes.