Our Boy Cave Sign is made of sturdy aluminum,lightweight,durable.With four pre-drilled holes in the rounded corners for easy hanging or mounted on every surface .It is lightweight and can be attached to the back with nails and cable ties or double-sided foam tape, ideal for living room, bedroom, office, hotel, dinning room, club wall decoration.. These classic metal signs will give you a meaningful look, a funny decorative gift, whether it is a Christmas or Christmas gift for a loved one or a funny gift option for your family.