【Impact Resistance】 The tension of the 13.6kg black magnetic hook is based on the tension direction perpendicular to the contact surface; if used horizontally, it can be reduced to 2/3. Please note that the tension of the magnetic hook will also be affected by factors such as orientation, contact surface material, etc. 【High Quality Magnetic Coating】 The black magnetic hooks are coated with three layers of black epoxy, nickel, and copper, providing a shiny steel cup with anti-rust coating, which protects the magnets and helps prevent chips or cracks. 【High Quality】 The black magnetic hook is made of high-quality A3 steel and neodymium magnets. Thanks to the addition of an iron casing, the suction force of the magnetic hook is several times greater than that of a conventional magnet. Metal Magnetic Hook - Always Powerful Magnetism! 【Multiple Uses】 The magnetic hook has a simple structure and is easy to install and use. They are ideal for hanging small objects in places with iron or