Magnetic field viewing film is a green translucent film used for viewing magnetic fields and magnetic pole patterns on a magnet or magnetic assembly.
Magnetic Viewing Film,6X4 Inch Green Magnetic Field Display Film,Magnetic Flux Display, Magnetic Field Detector,Reusable - AliExpress
File:Magnetic field viewing film on rectangular Refrigerator magnet.jpg - Wikimedia Commons
50x50mm Magnetic Field Viewer Film Card Magnet Pattern Viewing Film – Star International
Magnetic Viewing Film (MagFilm) - Magnets By HSMAG
Encased within the green film are millions of magnetic particles suspended in oil., Magnetic Film Area: 1 1/4 x 2 inches, SKU# MFV1
Magnetic Field Viewer Card
Dark Green Magnetic Field Viewer Viewing Film Card Magnet Detector
Magnetic Field Viewer Card – Less EMF
TS-B02 TS-D25 Original Tip Replacement
MIKEDE Magnetic Viewing Film, 4 x 4 Green Magnetic Field Display Film, Magnetic Flux Display, Magnetic Filed Detector, Reusable and Automatic Recovery: : Industrial & Scientific
Magnetic Viewing Film
Magnetic Field Viewer Viewing Film 50x50mm 25×25mm 30×30mm Card Magnet Detector Pattern Display Drop Shipping
Magnetic Viewing Film
How Magnetic Field Viewing Film Works? - Magnets By HSMAG
Viewer sheet|Permanent magnets and magnet manufacturing and sales - Magna Co., Ltd.
6 x 4 Inch Magnetic Field Viewing Film, Magnetic Field Viewer, Magnetic Flux Display, Magnet Pattern Detector, See Magnetic Field for Scientific Project Teaching - Yahoo Shopping