Mag Daddy utilizes Ultra-Strong magnets the same that are used in Aerospace, and Automotive Industries. These magnets for the first time ever are being used for applications in Wire/Cable management, and automotive fastener solutions. Mag Daddy magnets easily stick through oil, grease, paint, and dirt. After placing a Mag Daddy Fastener onto a thick piece of steel, i.e. I-Beam, it appears as if it was welded on!