🧲USEFUL – Use your rare earth magnet for just about anything, including finding studs in your wall, fastening, lifting, hanging objects, various projects & presentations, education, & more. NASA even uses them on Mars Exploration Rovers! 🧲SATISFACTION GUARANTEED – We’re confident that you’ll love our Neodymium Permanent magnets, which is why we’re happy to include a 100% satisfaction, 30-day guarantee with your neodymium order. 🧲UNIQUE UTILITY – Use your tiny rare earth magnet for just a lot of subtle uses: Artwork, Cabinetry Storage, Educationals, and more. This bulk pack of 100 neodymium disc magnets delivers consistent strength, reliability, and versatility for professional, industrial, and everyday applications. Each magnet measures 3/8 inch (9.52mm) in diameter and 1/16 inch (1.57mm) thick, designed to balance powerful magnetic pull with compact size. Built from premium rare-earth material, these magnets provide durable holding force and long-term performance across a wide range of projects — from crafts and prototypes to mechanical assemblies and model construction. Every magnet in the set undergoes precision machining and triple-layer nickel-copper-nickel plating to ensure a smooth, corrosion-resistant finish. Whether you need a secure magnetic hold, a reliable fastening system, or a compact magnet for creative builds, this 100-piece set offers the flexibility to do it all. Reliable Magnetic Strength in a Compact Design These magnets may be small, but they deliver high magnetic performance. Under ideal conditions — full face-to-face contact with clean, thick steel — each disc can exert a noticeable holding force suitable for light to medium-duty attachment tasks. Their slim 1/16-inch profile allows for discreet placement in tight spaces, while the 3/8-inch diameter provides a stable contact surface for dependable grip. The rare-earth neodymium material (NdFeB) inside each magnet gives it an exceptionally high magnetic energy density. That means even at a small size, these discs outperform older ceramic or ferrite magnets by several times in holding power. They maintain magnetization over time, resist demagnetization under normal conditions, and can be reused indefinitely without noticeable strength loss when properly handled. Precision Engineering and Protective Coating Each magnet is manufactured to tight dimensional tolerances, ensuring uniform size and consistent magnetic behavior across the full set of 100. The triple-plated coating — nickel, copper, and nickel again — serves three purposes: Corrosion Resistance: The outer nickel layer prevents oxidation and rust in normal humidity. Adhesion Strength: The copper middle layer enhances bonding between core and surface layers. Durable Finish: The final nickel coating gives the magnet a polished appearance and smooth texture, reducing scratching or abrasion when used on metal surfaces. This careful construction ensures the magnets retain both their structural integrity and appearance over time, even after repeated installation and removal cycles. Versatile Applications Across Fields The combination of compact form factor and strong magnetic field makes these neodymium discs useful in dozens of settings: 1. DIY and Craft Projects Ideal for securing small parts, attaching decorations, or creating modular designs. Crafters use them to build custom fridge magnets, jewelry clasps, and wall organizers. The small size allows hidden mounting beneath wood, plastic, or fabric surfaces. 2. Model Building and Prototyping Model hobbyists, engineers, and makers rely on neodymium discs for precision alignment. They’re often used in model trains, RC vehicles, architecture mockups, and mechanical prototypes to connect components that need to move or detach easily. 3. Home and Office Organization Use these magnets to create clean, hardware-free storage solutions. Perfect for magnetic tool racks, office whiteboards, kitchen knife holders, or to secure small metal items like keys and screws to convenient surfaces. 4. Education and Science Experiments A favorite in classrooms and laboratories, these magnets help demonstrate magnetic fields, polarity, and attraction. Their consistent strength makes them ideal for student experiments, STEM kits, and field mapping demonstrations. 5. Industrial and Engineering Tasks In manufacturing or mechanical repair, these small magnets act as holding aids, position markers, or retrieval tools for metal shavings and small screws. They integrate well into jigs, sensors, and machine housings that need compact magnetic elements. Durability and Longevity The protective plating and high-grade material make these magnets suitable for both professional and casual use. They maintain stable magnetization for decades under proper conditions. Typical demagnetization only occurs at temperatures above 176°F (80°C), so they’re suitable for most indoor and moderate-temperature environments. To maximize lifespan: Avoid dropping or snapping magnets to