Magnetic Pole Observation Cards are a convenient tool for quickly identifying the distribution of magnetic poles in magnets. Also known as magnetic pole display cards or magnetic pole observation sheets, we recently received an order from a U.S. customer for 10 A4-sized cards. The order has been packaged and is awaiting pickup by the courier.
10 pcs A4-sized magnetic pole viewing film packaged in a box

Single A4 sized green magnetic pole display card tool

This magnetic circuit field detection sheet is a standard A4 size and is laminated, providing a clear and intuitive display of the magnet's pole distribution. It is convenient for customers to use in various scenarios such as quality inspection and maintenance, and can also be cut to the desired size.
In addition to this green magnetic pole display card, our company also offers a yellow, scratch-resistant version. Customers interested in purchasing are welcome to inquire about pricing.
Understanding the differences between magnetic pole observation piece of various colors: Difference between different colors of magnetic field viewing film
Highly recommended reading;
China Neodymium And Ferrite Magnets Manufacturer & Supplier