These adhesive hangers are a great invention.I didn't want to spend hundreds of dollars on fancy art for my apartments over the years. So I started taking high resolution photos of the cities I lived in over the years and had the raw photos printed at Costco. The prints are enormous and are backed with thick cardboard like paper, which makes them weigh very little. I tried several type of picture hangers and ended up with these little adhesive ones. They have held the prints on my walls for 3 years and counting.Great idea. Great product. Perfect for the way I used them.