Constructed for strength and durability, these reversible boards are a versatile mobile communication tool. The reversing mechanism is specifically designed to make flipping the other side a snap! Strong steel lock clamps adjust to secure the board to the preferred position. Each of these portable units features a full-length accessory tray for convenience and the reinforced legs have added bracing for stability and security. The Wood Frame Series does not come on wheels but an optional set of 4 casters (2 locking wheels) is sold separately. Whiteboard surfaces are non-magnetic. Choose between cork surface on both sides, whiteboard surface on both sides, or one side of each.