Organize your desk in style with the Ice Black Collection of desk accessories from CEP Office Solutions. Increase your letter tray storage capacity with the Ice Black Letter Tray Risers. Simply place the risers between two trays and gain an additional 1-1/4 inches of space. One pack includes two risers. Founded in 1860, CEP manufactures office products with a genuine concern for preservation of the environment. Each new product is designed to be extremely strong while minimizing the amount of plastics used, and all products are 100 percent recyclable.