Portable Writing Surface With Internal Storage. Heavy-duty aluminum construction with weather resistant lacquer finish. Low profile clip fits easily into cases & gear bags. Clip holds up to 1/2'' of paper. Lower compartment has 1'' capacity and features a built-in pen tray. Upper compartment provides an additional 7/16'' of storage capacity. Upper tray can be removed to create a single, large storage compartment. Latch keeps lid tightly closed. Made in USA.