4pcs Neodymium 15mm X 15mm X 3mm Mini Square Magnets

- Powerful Neodymium Magnets crafted from premium-grade neodymium steel. - Heavy-duty rare earth magnets guarantee a strong hold that can hold up several papers without sliding. - Triple Layer Protection coating of nickel-copper-nickel, which prevents corrosion and extends the lifespan of the magnets. - And smooth rounded edges for safety and to prevent scratching surfaces. - Versatile Applications and ideal for conducting scientific experiments, arts and crafts projects, enhancing home décor, organizing tools in the garage, displaying photos, etc. - Consists of four 15mm square magnets.