Magnetic or Non-Magnetic surface. Castor wheels allows for the revolving whiteboard to be moved Double sided pentray (450mm). Anodised aluminium frame. Double sided Whiteboard . Double cross bars ensure stability. Assembles easily without tools. Durable and stylish plastic cross bar stabilizer. Will go through a standard door (2100mm diagonally) without disassembling. After comparing online prices, www.marvel.co.za should be the cheapest on this product.