If you need to fish wires behind walls, this tool is a must have. Check it out yourself at ➡ https://www.kleintools.com/catalog/wire-pulling-system/magnetic-wire-puller | Klein Tools

The Klein Magnetic wire puller quickly and easily fishes wire and cable behind finished walls and enclosed spaces. Doubles as a metal stud finder with marking notches on all four sides of handheld unit. You can get one here: https://www.kleintools.com/catalog/wire-pulling-system/magnetic-wire-puller | Klein Tools