Great coated: Ni+Cu+Ni triple layer coated of the neodymium bar magnets are more durable and keep shinning surface as well as rust resistant protection.
Permanent Magnets: Made of premium rare earth magnet, ultra strong and permanently magnetic. They would never loss their power over time.
Dimensions: 56mm x 9mm x 3mm - Pack of 8.
Features: Each magnet's north and south pole are on opposite 56mm x 9mm faces.
Warning: The bar magnet is fragile, it is forbidden to collide with other metal objects , so be careful when you are trying separate them and pay more attention to avoid hurting your fingers when separate them.