This is an auger head. It connects at the end of a sewer auger (like a plumbing snake). How it works is the cable auger (see related products below) rotates the cable which causes this head to latch onto whatever is the blockage (ie. your favorite Packers t-shirt) so that it can be pulled back up to the cleanout, or wherever your access to the sewer line happens to be. To use this product, you must have a compatible cable and a way to use that cable. There are hand-powered augers and machine-powered augers. Most plumbing professionals will have both. Many homeowners have the hand-powered units. Search this site for 'ridgid auger' to see some that are available for use with this product.