This product is an ultra-thin round powerful magnet with a diameter of 15mm and a thickness of 1.5mm. The surface is protected by nickel plating. It is magnetized in the thickness direction. The maximum working temperature is 80 °C and the surface magnetic field strength is about 1700gs. And many other fields, if you are interested in buying, please feel free to contact me by email, you can customize the performance level, coating, factory direct sales, the price has a certain advantage....