The pending double polarity configuration ensures 360 degree field coverage, outperforming standard ceramic magnets with strong holding power for professional applications Perfect for securing architectural blueprints on steel workbenches, displaying children ' s artwork on refrigerator doors, or maintaining inspection checklists in automotive repair bays Heavy duty neodymium pins with I shaped design deliver exceptionally 15lbs pull force, securely holding documents and tools on metal surfaces through advanced N52 grade magnet cores Essential for workshop technicians, organizers, and DIYer enthusiasts requiring reliabled fastening solution for industrial whiteboards, garage tool panels, or home command centers Engineered with resistant casing and precise engineered iron base, this industrial grade tacks combines durability with maximumly surfaces for vibrations resistant adhesion, Manufacturer: ERRORY