CD Wave Rack for 21 CDs - Free Standing or Wall Mountable. Connectable for Larger Storage. Distinctive crescent shaped rack can be used as a desktop storage unit or mounted on the wall with included hardware. Versatile CD storage system. Connect 2 units to form a semi-circle for 40 CDs for tabletop or wall mounting or 4 units to form a circular unit for 80 CDs. High impact plastic construction; available in black. Holds 20 CDs.