Scotch Extreme Fasteners work great on multiple surfaces indoors and outdoors. They can be used to hold down tarps outdoors, hang outdoor decor on siding and fences, or mount metal signs. They can also be used to hang indoor decor and assist in organizational and art projects. Heavy-duty, UV-resistant, reclosable fastener stays attached even when wet or dirty. It holds up to 10 lb. with 1" per 2 lb. and lasts for 1,000 closures. It is quick and easy to use. You'll hear an audible snap to indicate closure.