Pack of 4 Ring Magnets: Diameter 70 mm x 32 15 Ferrite Magnet with Hole, Magnetic Heavy Duty Magnets Disc Hole for Industry, DIY, Crafts, Science Projects

MAGNETIC PERFORMANCE: Class 8 ferrite toroidal magnet, anti-demagnetization, anti-corrosion, anti-oxidation. Sturdy ring magnets, magnetic disc with ring hole, magnetic ring whose magnetic force never weakens, a magnet can hold up to 8 pounds safely on a magnetic surface or metal stand. Outer diameter: 70 mm, inner diameter: 32 mm, thickness 15 mm. 【Strength and Durability】Ferrite magnets are extremely resistant to demagnetization, corrosion and oxidation. Our round ferrite magnetic rings with hole are the most powerful ceramic magnets for craftsmen and hobbyists. 【Easy to Use】 The surface of the DIY magnetic ring is smooth and anti-rust, and can be fixed with glue to any non-metallic surface or directly adsorbed on the metal surface. This DIY ferrite ring magnet, sturdy magnetic disc ring magnets is suitable for industry and fits perfectly as a magnet for a variety of craft projects and science projects. 【Widely Used】Powerful ferrite magnets can be used directly in offices, basements, garages and warehouses to store tools, close bags and DIY projects. It can also be used for school experiments and for storage at home. The ferrite magnetic ring with hole is also ideal for use at home, in the workshop and for tool storage. 【Smart Choice】 These toroidal ferritics are magnetically similar to rare earth neodymium magnets and are less expensive than these. These ring magnets have industrial strength, the magnetic ring is ideal for home, office, school, crafts and science projects.