The primary goal of this product is to secure a rug over a carpet. When a rug is laid on top of another carpet, it can shift, catch footsteps, and become a tripping hazard. Rug Settlers are designed so that the top flat portion stays on the surface of the overlay rug, while the first 0.5 inch of the wire passes vertically through the overlay. After the first bend, the second segment of the wire passes through the underlay (carpet) at a 45° angle and rests partly under the surface. (See illustration below.)