Strong Rare Earth Magnet, Large Neodymium Magnetic Block 39x19mm Industrial High Powerful Magnets Disc Big Round Permanent for Crafts, Scientific Project, Fridge

HIGH QUALITY: Constructed from neodymium-iron-boron alloy (NdFeB) with a nickel coating and an attractive silver finish, all magnets are axially magnetized and rated for a maximum operating temperature of 80 degrees Celsius. Suitable for most scenarios.
MULTIPURPOSE: These neodymium magnets are ideal for outdoor use, kitchen, refrigerator, DIY craft projects, and scientific endeavors.
LARGE SIZE: Diameter 39mm x thickness 19mm (approx. 1.53" x 0.75" ).
Tolerances: ± 0.2 mm x ± 0.2 mm. Magnetic properties and broader applications compared to standard magnets. Robust magnetism within.
USAGE TIPS: Neodymium magnets are produced by pressing large quantities of powder into blocks via a sintering process. They may fracture upon sudden impact. Keep the two magnets at a considerable distance to avoid collision. Magnetism can be influenced by various factors.
CAUTION: Proper
separation technique: Gently slide the magnet off the edge of the other magnet or steel surface. The pull force of these strong magnets depends on the flatness and material of the contact surface; smooth iron surfaces yield a powerful grip