Aenienoe 10pcs Neodymium Magnets 25mm Magnets Extra Strong with Hole 30KG Force Pot Magnet Round Magnet for Screw Fixing Bolt

["Strong Magnets with Hole: Made from the strongest neodymium magnets extra strong and a steel casing. The magnetic force is extremely strong and the steel casing can protect the magnet from breaking easily. Strong magnet diameter 25 mm, 10 pieces.", "High-performance magnets with Hole: Ni+Cu+Ni triple layer coating on the surface of the magnet. The best coating to give magnets shine and rust and corrosion protection. Magnet does not lose its magnetic force over time.", "Wide range of applications: Neodymium magnets with holes can be fastened with screws. Used in various occasions such as at home, in the office, in the workshop, in the warehouse, etc. Strong suction magnets can pick up and hold objects that don't easily fall off magnet holder.", "Easy to use: The pot magnets are uniquely designed with countersunk holes and screws. The strong magnets with holes can be fastened with screws. Magnets can be directly attached to the surface of metal objects. Easy to disassemble and small, you can take it anywhere without taking up space.", "Attraction and Effect: The size of the attraction force of the strong magnets with hole is mainly influenced by two factors - the material it attracts and the quality of the contact between the magnet and the object. The thicker the iron and the better the contact, the stronger the magnetic effect."]