Magnepull is the most advanced cable retrieval system on the market today. Using powerful rare earth magnets, Magnepull works through drywall, insulation, and carpet to pull wire more quickly and easily than the old fish-tape method. Magnepull is designed for commercial or residential installation of HVAC and building automation cable, satellite TV, home theater, security, thermostat or telecom wire and makes a wiring project a one-man job. The XP1000-3 bullet drop magnet with leader and drop chain comes with the XP1000-LC system. Other drop magnets such as the XP1000-3-1 (without leader, for confined spaces), XP1000-4 (with 8/32" threaded stud), and XP1000-6 (1/2" diameter bullet for smaller wires, also has the 8/32" threads) are also available.The MS800-1 Magnespot is used to locate a reference marker through sheetrock, ceilings or floorings.