Magnetically receptive Steel surface. Concealed mounting (wall screws and mansory plugs supplied, 6mm). Slide-in aluminium pentray (450 x 35mm). Pentray packed in back of board to ensure no damages while being transported. Can be used with Easy Rail System . Anodised aluminium frame. Includes mounting instructions. Standard frame 20mm wide. Write 'n Wipe abilities. *This print reflects previous map information & may not align with current updates. After comparing online prices, www.marvel.co.za should be the cheapest on this product.