MAGNETIC FASTENERS EFFORTLESSLY ATTACH CABLES TO METAL WITH THE MAG DADDY MAGNETIC FASTENERS Mag Daddy magnetic fasteners utilize ultra-strong magnets to strap wire and cable. Mag Daddy magnets will stay attached through oil, Lib paint or dirt. A variety of configurations are available to suit your needs. a Picture Part Number Description 3/2" Magnetic Cable Holder RM LOOT «Available sizes: 12°, 847, 1" ~ White of Black =~ Magnetic Strength: 16.