Magnetic Field Viewer Viewing Film 50X50mm Card Magnet Detector Pattern Display

Material: composite material Color: as shown and portable size lightweight convenient to carry with you. educational tool to stimulate interest in science. Magnetic field viewer is a -encapsulated film which makes a static magnetic field. The highly flexible film suit for magnetic surfaces with any degree of convexity or concavity. Specification: Dimensions: 50x50mm(1.97x1.97in)() : 1 pc Note: Transition: 1cm=10mm=0.39inch Package Contents: 1 x Magnetic Field Viewer(other accessories demo in the picture is not included.) Only the above package content other products are not included. Note: Light reflection 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.