Strong, durable and made to last longer outdoors than regular gray duct tapes. This item is available in a 2 x 2 x 3 small case containing 12 individually wrapped 1.88 in x 45 yd rolls. 3M heavy-duty all-weather duct tape is designed for long-term, permanent, exterior repairs. It resists drying, cracking and peeling caused by the damaging effects of sunlight, heat, cold and moisture. It lasts 3X longer than other 3M general-purpose gray duct tapes in exterior conditions.