Clearly observe the patterns of the magnetic field.Place the film as close as possible to the magnet/item to observe the pattern changes.Reusable and automatic recovery.The stronger magnets, the better the results.Product Name: Magnetic Paper/Magnetic Field Viewing Film /Magnetic Field Viewer/Magnetic Field Demonstratorcolor:Brown yellowMaterial:Magnetic Nanoparticlessize:10 x 10cmPackage Contents:1 x Magnetic viewing filmOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
