【MAGNETS COATED】Strong bar magnets are coated with three layers of black epoxy+ nickel+ copper, so they provides a shiny and rust resistant protection for the magnets.The waterproof bar magnet has excellent uniform electrodeposition performance, greatly reducing residual dust. 【POWERFUL MAGNETS】Strong Neodymium bar magnets is made of strongest magnetic material! Strong holding power, holding power is not less than 18 lb per magnet with direct touch and direct pull. 【MAGNETS DIMENSIONS】The size of heavy duty magnet: 60mm x 10mm x 3mm (approx. 2.36" x 0.4" x 0.12"), Tolerances: ±0.2mm x ±0.2mm. Color: Silver. 【WIDE APPLICATION】Strong rare earth magnet can be applied to refrigerator magnets, kitchen, shower door, office, scientific experiment, arts and crafts or any workspace. 【ADVANCED SERVICE】Waterproof neodymium bar magnets undergo strict inspection before packaging to ensure that the product is intact and sturable. The powerful rare earth magnet is very fragile and its magnetism is very strong, it is forbidden to collide with other metal objects (including another magnet), so be careful when you try to separate magnets! If there are any issues with our product, please contact us and we will solve any problems for you! br br LOVIMAG Waterproof Powerful Neodymium Bar Magnets - 60mm x 10mm x 3mm (50 PCS) /b br br Rare earth magnet is a kind of strong permanent magnet. They are amazingly powerful for their size and have innumerable uses.They are magnetized through the thickness. /b They are composed of neodymium iron boron magnetic material and are plated in nickel-copper-nickel for a shiny corrosion resistant finish. Maximum working temperature is 176 F (80 C). /b br br These heavy duty bar magnets with double-sided adhesive provide an astonishing pull of 18lb and every magnet has a triple coating of nickel, copper and nickel again to prevent against corrosion. /b br br Our Neodymium magnets are commonly used in creative applications such as model making, theatre design, furniture making, exhibition displays and packaging. /b br br These powerful neodymium bar magnets also have many uses in engineering and manufacturing where small size and maximum strength are required. /b br br What's more, because of their resistance to demagnetisation they are ideal for creating a shock-absorbing or damping effect when used to repel other magnets. /b br br Warning /b br 1.Keep away from pacemakers. /b br 2. Powerful bar magnets can hurt your fingers. /b br 3. Not for children, parental supervision required. /b br 4. All magnets may chip and shatter, but if used correctly can last a lifetime. /b br 5. If damaged please dispose of completely. Shards are still magnetized and if swallowed can inflict serious damage. /b