Hasaller Magnetic Field Viewer Card Viewing Film Magnet Pattern View Film Viewing Film Sheet Field Paper Card Magnet Detector Pattern Display for Scientific Observation(40x45mm)

• 【Magnetic Field Viewer Film】Made of magnet, this viewing film allows you to observe magnetic fields in a visual and tangible way.
• 【Easy to use】Simply place the card on the face of the magnetic material, and it will reveal a pattern of the magnetic field. No complicated procedures required.
• 【Great for scientific research】 for IDEAL for scientific research purposes, this film helps to study and analyze magnetic fields that are otherwise invisible to the naked eye.
• 【Application】With good performance and practicality, it is suitable for both personal and professional use.
• 【Lightweight and portable】This film is lightweight and comes in small sizes (25x35mm, 40x45mm, 30x50mm), making it easy to store, carry, and bring convenience wherever you go.

Feature: Magnetic Field Viewer Film Magnetic Viewing Film Paper 25x35mm 40x45mm 30x50mm Material: Made of magnet. easy to use: Just place the card on the of the magnetic material and it will reveal a magnetic field of pattern. Great for personal or scientific research. And it help us study magnetic fields that we can't see. Application: for Good performance, convenient and practical, suitable for home and professional use. Lightweight Size: Portable and small size, easy to store and carry, bring you convenience. Specification: Material: Magnetic Field Viewer Viewing Film Color: Green Type: 25x35mm,40x45mm,30x50mm Package Includes: 1x Magnetic Field Viewer Viewing Film