---
product_id: 774252156
title: "4 x 4 Inch Magnetic Field Viewing Film, Magnetic Field Viewer, Magnetic Flux Display, Magnet Pattern Detector, See Magnetic Field for Scientific Project Teaching"
brand: "learay"
price: "KSh18908"
currency: KES
in_stock: false
reviews_count: 5
category: "Learay"
url: https://www.desertcart.co.ke/products/774252156-4-x-4-inch-magnetic-field-viewing-film-magnetic-field
store_origin: KE
region: Kenya
---

# Color-coded magnetic field intensity 4x4 inch magnetic nanoparticle film Reusable with automatic recovery 4 x 4 Inch Magnetic Field Viewing Film, Magnetic Field Viewer, Magnetic Flux Display, Magnet Pattern Detector, See Magnetic Field for Scientific Project Teaching

**Brand:** learay
**Price:** KSh18908
**Availability:** ❌ Out of Stock

## Summary

> 🧲 Unlock the unseen magnetic world—because real power is visible!

## Quick Answers

- **What is this?** 4 x 4 Inch Magnetic Field Viewing Film, Magnetic Field Viewer, Magnetic Flux Display, Magnet Pattern Detector, See Magnetic Field for Scientific Project Teaching by learay
- **How much does it cost?** KSh18908 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/774252156-4-x-4-inch-magnetic-field-viewing-film-magnetic-field)

## Best For

- learay enthusiasts

## Why This Product

- Trusted learay brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Portable:** Lightweight 4x4 inch size fits easily in your toolkit or office drawer for spontaneous demos.
- • **Effortless Reusability:** Durable plastic frame and automatic recovery make it your go-to magnetic field detector.
- • **Versatile Scientific Tool:** Perfect for STEM projects, executive desks, or unlocking hidden magnetism in everyday objects.
- • **Precision Magnetic Mapping:** Fine nickel slurry film reveals detailed magnet patterns from Neodymium to AlNiCo.
- • **Visualize Invisible Forces:** See magnetic field lines in vivid color gradients for instant magnetic flux insights.

## Overview

This 4x4 inch magnetic field viewing film uses a brownish-yellow plastic embedded with fine nickel nanoparticles to visually display magnetic field lines in color-coded intensity. Designed for strong magnets like Neodymium and AlNiCo, it offers reusable, automatic recovery functionality within a protective frame. Ideal for scientific education, executive toys, and magnetic pattern detection in everyday items.

## Description

Product Name: Magnetic Paper/Magnetic Field Viewing Film /Magnetic Field Viewer/Magnetic Field Demonstrator Film Size: 4""x 4""(L*W) Color: Brownish Yellow Material: magnetic nanoparticles Features: Clearly observe the patterns of the magnetic field. Place the film as close as possible to the magnet/item to observe the pattern changes. Reusable and automatic recovery. The stronger magnets, the better the results. Warmming Tips: We are committed to making excellent products, if you are not satisfied with your order, please feel free to contact us for good solutions. Package includes: 1 x Magnetic viewing film

Review: Works great but I would recommend taking it out of the cardboard thing it comes in
Review: I have been using the green field viewer sheets for years, and they are great, but I was looking for something that made a clearer image. So I got some of these. And they are amazing! I thought they'd be good, given the reviews, but I assumed that the photos were faked. They aren't—you really do get different colors and a very striking pattern when you have an interesting magnetic field to make visible. The only downside is this: This film only works on really strong fields. Refrigerator magnets.... Nope. You need strong rare earth magnets to see a good effect. But if you have strong magnets and you need to make a striking visualization of their field.... This is a great tool for the job!

## Features

- ✨Magnetic Field Display - Brown magnetic nanoparticles film is used to show magnetic field, clearly showing the patterns of magnetic field lines of magnets. Different colors represent different magnetic field intensity.
- ✨Unique Design - The magnetic field paper is made of plastic film that contains a ferromagnetic slurry of fine nickel, and the frame outside can fix and protect the film.
- ✨Widely Used in Daily - Ideal for observing all kinds of magnets such as SmCo, AlNiCo, Neodymium and Flexible Magnets. Clearly view magnetic field in objects(magnetic clasp on your door, the speaker on your phone, or concealed buckle of the handbag).
- ✨Wonderful Tool for Study -Just put magnetic field viewing film on little things, discover and analyze magnetic fields, and open your mind to calculate the value of the magnetic field, even if change the magnetic pattern.
- ✨Reusable and Automatic Recovery - Our magnetic field viewer is reusable and automatic recovery after use, just place it on object surface to observe magnetic field.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BCFM83XB |
| Are batteries included? | No |
| Brand | Learay |
| Colour | Brownish Yellow |
| Country of Origin | USA |
| Customer Reviews | 4.4 4.4 out of 5 stars (180) |
| Date First Available | 3 May 2025 |
| Included Components | Magnetic Field Viewing Film |
| Item Weight | 32 g |
| Item model number | Learay-Magnets-MFV001 |
| Manufacturer | Learay |
| Material | Magnetic Nanoparticles |
| Model number | Learay-Magnets-MFV001 |
| Net Quantity | 1 Count |
| Number of Memory Sticks | 1 |
| Number of Pieces | 1 |
| Product Dimensions | 10.2L x 10.2W x 0.1Th Centimeters |
| Shape | Square |
| Special Feature | Clearly View |
| UPC | 707933182284 |

## Product Details

- **Brand:** Learay
- **Colour:** Brownish Yellow
- **Material:** Magnetic Nanoparticles
- **Product Dimensions:** 10.2L x 10.2W x 0.1Th Centimeters
- **Shape:** Square

## Images

![4 x 4 Inch Magnetic Field Viewing Film, Magnetic Field Viewer, Magnetic Flux Display, Magnet Pattern Detector, See Magnetic Field for Scientific Project Teaching - Image 1](https://m.media-amazon.com/images/I/41+FjtFeUqL.jpg)
![4 x 4 Inch Magnetic Field Viewing Film, Magnetic Field Viewer, Magnetic Flux Display, Magnet Pattern Detector, See Magnetic Field for Scientific Project Teaching - Image 2](https://m.media-amazon.com/images/I/41NW+CUEmGL.jpg)
![4 x 4 Inch Magnetic Field Viewing Film, Magnetic Field Viewer, Magnetic Flux Display, Magnet Pattern Detector, See Magnetic Field for Scientific Project Teaching - Image 3](https://m.media-amazon.com/images/I/41S7MBQBSdL.jpg)
![4 x 4 Inch Magnetic Field Viewing Film, Magnetic Field Viewer, Magnetic Flux Display, Magnet Pattern Detector, See Magnetic Field for Scientific Project Teaching - Image 4](https://m.media-amazon.com/images/I/41er7T8QQJL.jpg)
![4 x 4 Inch Magnetic Field Viewing Film, Magnetic Field Viewer, Magnetic Flux Display, Magnet Pattern Detector, See Magnetic Field for Scientific Project Teaching - Image 5](https://m.media-amazon.com/images/I/41igTLDU5sL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***Y on 20 December 2025*

Works great but I would recommend taking it out of the cardboard thing it comes in

### ⭐⭐⭐⭐⭐ Review
*by B***S on 11 October 2024*

I have been using the green field viewer sheets for years, and they are great, but I was looking for something that made a clearer image. So I got some of these. And they are amazing! I thought they'd be good, given the reviews, but I assumed that the photos were faked. They aren't—you really do get different colors and a very striking pattern when you have an interesting magnetic field to make visible. The only downside is this: This film only works on really strong fields. Refrigerator magnets.... Nope. You need strong rare earth magnets to see a good effect. But if you have strong magnets and you need to make a striking visualization of their field.... This is a great tool for the job!

### ⭐⭐⭐⭐⭐ Review
*by J***Y on 13 December 2025*

Have you seen what different magnet fields look like? This is a great buy to help visualize what is happening.

## Frequently Bought Together

- 4 x 4 Inch Magnetic Field Viewing Film, Magnetic Field Viewer, Magnetic Flux Display, Magnet Pattern Detector, See Magnetic Field for Scientific Project (4 * 4 Inch)
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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-16*