Wire fishing made easy! Quickly threads wire and cable through cavity walls and void spaces. Threads at an angle and safely through other wire and cable obstacles. Saves time, saves money, and sharply reduces the risk of accidents. To use the MM-800 follow these four simple steps: 1. Drill a hole and remove the dust and debris 2. Next simply place the MM-800 specially designed magnetic rod through the hole you wish to snake the wire 3. Screw on the appropriate magnetic cap to the cable or wire end and align the magnets 4.Push the cable into the hole and through the other side of the wall. That's it! 44 percent time savings Six Sigma certified. Dramatically reduces shock risk. Easy to use - No experience required. Diamond award winning design. Kit Contains: 1 magnetic rod, 2 magnetic extensions and 5 magnetic caps.