Rectangular box has a grey strip around the top edges, top and bottom are also grey. Bottom sides of box have narrow stipes running vertically in units of threes. Top and bottom of the box has three holes,eacd side has one hole. Directions on the back was to "remove cellophane wrapper and hang up, so probably puncturing the cellophane in the holes would allow the the odor to escape. Cellophane is intack and box is empty.