BTuregsau 2Pcs 4x4Inch Magnetic Field Viewing Film,Magnetic Field Viewer,Magnetic Flux Display, Pattern Detector,for Scientific

BTuregsau Product Name: Magnetic Paper/Magnetic Field Viewing Film /Magnetic Field Viewer/Magnetic Field Demonstrator color:Brown yellow Material:Magnetic Nanoparticles size:10 x 10cm Package Contents: 2 x Magnetic viewing film 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.

Features

• Clearly observe the patterns of the magnetic field.
• Reusable and automatic recovery.
• Place the film as close as possible to the magnet/item to observe the pattern changes.
• The stronger magnets, the better the results.