---
product_id: 420325068
title: "FINDMAG 40 x 40 x 20mm Neodymium Magnet Strong, Strong Rare Earth Magnet | Big Cube Neodymium Science Magnet for Crafts, Scientific Project, Fridge, Industrial High Powerful Magnets for Office, Home"
brand: "findmag"
price: "$44.50"
currency: USD
in_stock: true
reviews_count: 8
category: "Findmag"
url: https://www.desertcart.us/products/420325068-findmag-40-x-40-x-20mm-neodymium-magnet-strong-strong
store_origin: US
region: United States of America
---

# 40x40x20mm - compact & versatile N52 strength - ultra powerful Ni+Cu+Ni coating - corrosion resistant FINDMAG 40 x 40 x 20mm Neodymium Magnet Strong, Strong Rare Earth Magnet | Big Cube Neodymium Science Magnet for Crafts, Scientific Project, Fridge, Industrial High Powerful Magnets for Office, Home

**Brand:** findmag
**Price:** $44.50
**Availability:** ✅ In Stock

## Summary

> 🧲 Elevate your projects with the magnet that means business!

## Quick Answers

- **What is this?** FINDMAG 40 x 40 x 20mm Neodymium Magnet Strong, Strong Rare Earth Magnet | Big Cube Neodymium Science Magnet for Crafts, Scientific Project, Fridge, Industrial High Powerful Magnets for Office, Home by findmag
- **How much does it cost?** $44.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/420325068-findmag-40-x-40-x-20mm-neodymium-magnet-strong-strong)

## Best For

- findmag enthusiasts

## Why This Product

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

## Key Features

- • **Compact Yet Mighty:** Perfectly sized 40x40x20mm block fits effortlessly into any project or workspace.
- • **Versatile Applications:** From stud finding to DIY crafts and even muscle therapy, this magnet adapts to your needs.
- • **Durability Meets Design:** Premium Ni+Cu+Ni coating ensures scratch resistance and long-lasting performance.
- • **Unmatched Magnetic Power:** Experience the strongest rare earth magnet for precision and heavy-duty tasks.
- • **ISO 9001 Certified Quality:** Crafted with professional standards and backed by a risk-free replacement guarantee.

## Overview

The FINDMAG 40x40x20mm Neodymium Magnet is a premium N52 rare earth magnet featuring a durable Ni+Cu+Ni coating for corrosion and scratch resistance. Compact yet incredibly powerful, it’s ideal for industrial, DIY, and even therapeutic uses. Certified to ISO 9001 standards, this magnet delivers professional-grade strength and reliability in a sleek, cuboid form.

## Description

FINDMAG 40x40x20mm Neodymium Block Magnet, N52 Heavy Duty Neodymium Magnets, Super Strong Permanent Magnet Disc, The World's Strongest and Most Powerful Rare Earth Magnets - One Piece

Review: Buy 2 for body healing - Quality is tender, but strength is why u bought for a small size. Buy 2 heal muscle and skin inflammation. Use 2 opposite poles to travel alone arms, legs, hands, etc! For healing. Repair of are begins right away. Would recommend
Review: Strong magnetic - Found stud through cement wall. Very useful!

## Features

- 🧲【Premium Magnet】Ni+Cu+Ni coated round magnets resist demagnetization, corrosion, and oxidation, featuring durable brushed nickel silver for a long-lasting, scratch-resistant surface.
- 🧲【Powerful Magnet】This powerful neodymium cuboid magnet, the strongest type available, is not for children's play due to its intense magnetic force. It's ideal for daily projects or tasks.
- 🧲【Versatile Use】This strong magnet is perfect for DIY, science experiments, kitchens, offices. Use it for stud finding, fastening, lifting, and more.
- 🧲【Perfect Size】Length: 40mm / 1.6inch, Width: 40mm / 1.6inch, Thickness: 20mm / 0.8inch; Quantity: 1 pcs; Shape: Cuboid. Convenient to use and display.
- 🧲【Professional Brand】Crafted to ISO 9001 standards, we offer a wide range of magnets. Unsatisfied? Get a replacement or refund, risk-free.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09LC9JQXT |
| Best Sellers Rank | #26,077 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #172 in Rare Earth Magnets |
| Brand | FINDMAG |
| Brand Name | FINDMAG |
| Color | Silver |
| Customer Reviews | 4.4 out of 5 stars 1,333 Reviews |
| Included Components | magnet |
| Item Dimensions L x W x Thickness | 1.57"L x 1.57"W x 0.79"Th |
| Item Thickness | 20 millimeters |
| Manufacturer | FINDMAG |
| Material | Nickel,Silver |
| Material Type | Nickel,Silver |
| Number of Pieces | 1 |
| Part Number | 00000000001 |
| Product Dimensions | 1.57"L x 1.57"W x 0.79"Th |
| Shape | Square |
| Unit Count | 1 Count |

## Product Details

- **Brand:** FINDMAG
- **Color:** Silver
- **Material:** Nickel,Silver
- **Product Dimensions:** 1.57"L x 1.57"W x 0.79"Th
- **Shape:** Square

## Images

![FINDMAG 40 x 40 x 20mm Neodymium Magnet Strong, Strong Rare Earth Magnet | Big Cube Neodymium Science Magnet for Crafts, Scientific Project, Fridge, Industrial High Powerful Magnets for Office, Home - Image 1](https://m.media-amazon.com/images/I/5158DQMu7CL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: will this magnet hold up in hot heat?**
A: Temperature resistance limit is 230°C

**Q: How many pounds will the cuboid lift?**
A: it can lift almost 250 pounds at Vertical use

**Q: how heavy are these magnets?**
A: About 7.3 ounces for each

**Q: What's the N-grade for these magnets?**
A: N52

## Customer Reviews

### ⭐⭐⭐⭐⭐ Buy 2 for body healing
*by C***N on June 23, 2026*

Quality is tender, but strength is why u bought for a small size. Buy 2 heal muscle and skin inflammation. Use 2 opposite poles to travel alone arms, legs, hands, etc! For healing. Repair of are begins right away. Would recommend

### ⭐⭐⭐⭐⭐ Strong magnetic
*by L***V on July 27, 2026*

Found stud through cement wall. Very useful!

### ⭐⭐⭐⭐⭐ Not your mother's magnet.
*by A***R on July 4, 2026*

Strong enough that they can be difficult to handle or remove from steel. Beware these babies can be/are dangerous from just how strong they are.

## Frequently Bought Together

- FINDMAG 40x40x20mm Neodymium Block Magnet, N52 Heavy Duty Neodymium Magnets, Super Strong Permanent Magnet Disc, The World's Strongest and Most Powerful Rare Earth Magnets - One Piece
- MIKEDE Neodymium Magnet Super Strong Rare Earth Magnets for Stud Finder and Science Project - One Piece

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-08*