Features: Heavy duty neodymium magnetic pins with I shaped design deliver exceptionally 15lbs pull force, securely holding documents and tools on metal surfaces through advanced N52 grade magnet cores. Engineered with corrosions resistant casing and precise engineered iron base, this industrial grade magnetic tacks combines durability with maximumly surfaces contact for vibrations resistant adhesion. Essential for workshop technicians, office organizers, and DIYer enthusiasts requiring reliabled magnetic fastening solution for industrial whiteboards, garage tool panels, or home command centers. Perfect for securing architectural blueprints on steel workbenches, displaying children's artwork on refrigerator doors, or maintaining inspection checklists in automotive repair bays. The patent pending double polarity configuration ensures 360 degree magnetic field coverage, outperforming standard ceramic magnets with strong holding power for professional applications. Specifications: Product name: I-shaped metal nails Product weight: 90g Component: Metal, magnets Size:Approx.24x40x36mm/0.94x1.57x1.41inch Color:Black/Silver Package Includes: 1pcs Magnetic Pins note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.