Four 2 in. casters, two with locking brake. Easy to roll around the room. Whiteboard on both sides. Reversing mechanism for flipping to the other side a cinch. Easy adjusting knob locks. Large whiteboard will serve many purposes. Made from aluminum. Silver color. Minimal assembly required. Board: 48 in. W x 1 in. D x 36 in. H. Overall: 51 in. W x 20.5 in. D x 65 in. H (38 lbs.). Assembly instructions . Warranty .