a. Lacquered steel surface+corrugated cardboard filler+galvanized steel backside;2)lacquared steel surface+softboard backside b. Anodized silvery-white Aluminium frame. c. ABS protective corner d. Folding pen tray at the bottom (usually 45cm length) e. 2 sets of movable hooks, accessories:4pcs magnets-3cm, one marker pen B403 f. MOQ:1x20' container Delivery:30 days g. sample providing:3 days h. We can provide any sizes of boards according to customers' requests