The Ridge Clip makes decorating your roof's ridge line with light sets easy. This clip works great with C6, C7, C9, Pixel Bulbs, Mini's, Rope Lights, and more! It is easy to install, simply slides over the top of a shingle, and grabs opposing sides to stay in place. The Ridge Clip will leave no damage to your roof and works on asphalt shingles. It also works on most ridge vents and various metal roofs as well.