This wall sign is sold in sets of 10 units. The snap frame style sign holder can be used anywhere that requires the panel to be changed frequently. Simply flip open the aluminum edges and place the graphic over the non-glare lens and snap the edges back in place. Lightweight and versatile, this 8-1/2 x 12-1/2 sign frame can be mounted vertically or horizontally and holds one 8-1/2 x 10-1/2-inch sign panel. Each wall sign comes with all the necessary mounting hardware. Dimensions: Overall: 8-1/2" w x 12-1/2" h Viewable Area: 8-1/2" w x 10-1/2" h.