About This

• 【Magnetic Field Visualization】: Magnetic Field Viewer Film Magnetic Viewing Film Paper lets you clearly observe unseen magnetic field patterns by placing the card over magnet surfaces, turning invisible scientific phenomena into visible lines for study or demonstration.
• 【Multiple Size Options】: Comes in 25x35mm, 40x45mm, and 30x50mm formats to suit varied applications, from close-up inspection to larger surfaces coverage, making it versatile for home experiments or for professional lab use.
• 【Long Lasting Material】: Crafted from reliable green film material with magnetic sensitive coating, designed for repeated usage without distortion, maintaining accurate field pattern display over time.
• 【Portable And Lightweight】: Compact dimensions slip easily into a pocket or toolkit, enabling quick for ACCESS for research in classrooms, workshops, or in-field inspections without adding weight to your gear.
• 【Easy To Use】: Simply position over the magnetic source and watch patterns emerge instantly—no external power or tools required, offering a convenient solution for scientists, educators, and hobbyists alike.