Velcro brand extreme outdoor fasteners feature an all-weather, UV-resistant adhesive for rough surfaces including concrete and certain types of brick. Superior holding power meets the requirements of demanding indoor and outdoor applications without drilling, nails, screws or epoxy. All weather, rough surface fastenersEspecially formulated to stick to porous surfaces, such as concrete and certain types of brickFor semi-permanent fastening jobsUV resistant all weather, 0 degrees F to 175 degrees FCarded