Add extra-sensory powers to your toolbox with this superb HD Magnet Viewing Film. It is a special film that contains a ferromagnetic slurry of ultra-fine nickel particles that darkens around a magnetic field. Unlike some of the older films you may remember from elementary school science classes, these films are in "high resolution" so you can really see the details.

Slide it over the housings and devices to locate hidden magnets and speakers. Supplied laminated for protection.

Technical details

    Overall dimensions: 95 x 65mm
    Viewing area: 50 x 40mm