Description
Green Micro-Encapsulated Film Used to Show Magnetic Field, or Test for Cracks on Steel Surfaces Applicable with All kinds of Permanent Magnets, Such as Neodymium, Ceramic, SmCo, AlNiCo and Flexible Magnets. To Expose Magnetic Field, Place Directly on Top of the Magnets The Magnetic Field Pattern Stays on the Film so You can Further Analyze it till Next Use. The Film is Flexible and can be Wrapped Around Magnets Educational and Engaging to See the Magnetic Field.