ROBERTS® Hammered Carpet Gripper stretches and secures carpet, keeping the edge from rolling and fraying. Featuring 100% high-strength aluminum construction, it is ideal for use with concrete subfloors in high traffic areas, such as entry ways and doorways where tall pins may extend through the face of the carpet. It can be installed with any carpet, and is particularly useful with low-pile carpet, giving the edge of the carpeting a clean, professional finish.