---
product_id: 541987896
title: "TRYMAG Magnets for Crafts 300pcs Science Education Magnets Magnetism Kits"
brand: "trymag"
price: "¥12500"
currency: JPY
in_stock: true
reviews_count: 13
category: "Trymag"
url: https://www.desertcart.jp/products/541987896-trymag-magnets-for-crafts-300pcs-science-education-magnets-magnetism-kits
store_origin: JP
region: Japan
---

# 18mm diameter, perfect craft size Heat resistant up to 300°C 300 pcs powerful ceramic magnets TRYMAG Magnets for Crafts 300pcs Science Education Magnets Magnetism Kits

**Brand:** trymag
**Price:** ¥12500
**Availability:** ✅ In Stock

## Summary

> 🧲 Elevate your craft game with magnets that stick like your ideas do!

## Quick Answers

- **What is this?** TRYMAG Magnets for Crafts 300pcs Science Education Magnets Magnetism Kits by trymag
- **How much does it cost?** ¥12500 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/541987896-trymag-magnets-for-crafts-300pcs-science-education-magnets-magnetism-kits)

## Best For

- trymag enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Creative Freedom:** Smooth, scratch-free surface with easy peel adhesive backs for instant crafting magic.
- • **Built to Last Under Pressure:** Resistant to corrosion, oxidation, and heat up to 300°C—durability you can trust.
- • **Perfectly Sized for Precision:** Compact 18mm discs fit seamlessly into any DIY or professional project.
- • **Unmatched Industrial Strength:** 300 premium ceramic magnets with double-sided adhesive for rock-solid hold.
- • **Trusted by Pros & Makers Alike:** ISO 9001 certified quality with a top rank in science education magnets.

## Overview

TRYMAG offers 300 high-quality 18mm ceramic magnets with double-sided adhesive backing, engineered for durability and heat resistance up to 300°C. Ideal for crafts, science projects, and industrial use, these corrosion-resistant magnets provide a strong, reliable hold on any smooth surface, backed by ISO 9001 certification and trusted by thousands of creators.

## Description

TRYMAG Magnets for Crafts 300pcs Science Education Magnets Magnetism Kits | Sticky Round Ceramic Magnets, Flat Ferrite Magnet for Classroom, Science Education, Whiteboard, Button, Hobbies: desertcart.com: Industrial & Scientific

Review: Just what I need for my project. - I made chalkboard card stock labels for drying herbs in my dehydrator. I needed some magnets that wouldn't cause trouble for the electronic controls on my unit when I placed the labels on the door. And these ferrite style worked out great! Strong enough to hold without damage.
Review: Small size, STRONG magnet! - I ordered a set of the 3x2mm, they are very very small (3 mm in thickness, 2mm in diameter) but they are very strong! They even stick themselves with the rest of the magnets outside the plastic box when near proximity. I wanted to use this in 3D printing for small parts, and they are perfect. For a size comparison, they are the thickness of 1 Toothpick. Recommended product for small crafting hobbies or 3d printing projects that require magnets.

## Features

- Science Education Magnets Kit: Perfect for classroom physics demos and lab experiments. Students explore attraction, repulsion, pole identification, and flux density—an essential teaching tool for scientific measurements
- High Quality: Premium quality 300 PCs ceramic industrial magnets with 300 PCs double-sided adhesive. Diameter is 18mm(0.7"), thickness is 3mm(0.12").Note: Magnetic strength is lower than magnets - may not suit high-force applications
- Versatile Magnets for Crafts and Organization: Ideal for DIY crafts, whiteboard displays, locker decorations, refrigerator magnets, and office organization. Great for magnetic levitation devices and photo displays
- Self-Adhesive and Durable: Strong adhesive backing allows instant mounting on whiteboards or lab tables—no tape or glue needed. Made from ferrite material, resisting corrosion and demagnetization for years of use
- Safe, Smooth and Easy to Store: Smooth rounded edges ensure safe handling; flat discs stack neatly for storage. Perfect for physics kits, motor building, and after-school science clubs
- Warning: Not a toy. Strictly for users aged 14+. Children under 14 are prohibited from use (per desertcart safety policies), as improper use of magnets may pose a swallowing hazard

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C744LH8B |
| Best Sellers Rank | #671 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Science Education Magnets & Magnetism Kits |
| Brand | TRYMAG |
| Brand Name | TRYMAG |
| Color | Black |
| Customer Reviews | 4.3 out of 5 stars 668 Reviews |
| Included Components | magnets |
| Item Dimensions L x W x Thickness | 0.7"L x 0.71"W x 0.12"Th |
| Item Highlight | Sticky Round Ceramic Magnets, Flat Ferrite Magnet for Classroom, Science Education, Whiteboard, Button, Hobbies |
| Item Thickness | 3 millimeters |
| Manufacturer | TRYMAG |
| Material | Ceramic |
| Material Type | Ceramic |
| Model Number | 18x3 300p |
| Number of Items | 300 |
| Number of Pieces | 300 |
| Part Number | 18x3 300p |
| Product Dimensions | 0.7"L x 0.71"W x 0.12"Th |
| Shape | Round |
| Unit Count | 300 Count |

## Product Details

- **Material:** Ceramic
- **Brand:** TRYMAG
- **Product Dimensions:** 0.7"L x 0.71"W x 0.12"Th
- **Color:** Black
- **Shape:** Round

## Images

![TRYMAG Magnets for Crafts 300pcs Science Education Magnets Magnetism Kits - Image 1](https://m.media-amazon.com/images/I/81b+T1dYWCL.jpg)
![TRYMAG Magnets for Crafts 300pcs Science Education Magnets Magnetism Kits - Image 2](https://m.media-amazon.com/images/I/71QaYd-nlqL.jpg)
![TRYMAG Magnets for Crafts 300pcs Science Education Magnets Magnetism Kits - Image 3](https://m.media-amazon.com/images/I/71I6qol1bKL.jpg)
![TRYMAG Magnets for Crafts 300pcs Science Education Magnets Magnetism Kits - Image 4](https://m.media-amazon.com/images/I/71DkTzWUVNL.jpg)
![TRYMAG Magnets for Crafts 300pcs Science Education Magnets Magnetism Kits - Image 5](https://m.media-amazon.com/images/I/717csiHHOPL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Just what I need for my project.
*by O***E on June 28, 2026*

I made chalkboard card stock labels for drying herbs in my dehydrator. I needed some magnets that wouldn't cause trouble for the electronic controls on my unit when I placed the labels on the door. And these ferrite style worked out great! Strong enough to hold without damage.

### ⭐⭐⭐⭐⭐ Small size, STRONG magnet!
*by D***D on January 18, 2023*

I ordered a set of the 3x2mm, they are very very small (3 mm in thickness, 2mm in diameter) but they are very strong! They even stick themselves with the rest of the magnets outside the plastic box when near proximity. I wanted to use this in 3D printing for small parts, and they are perfect. For a size comparison, they are the thickness of 1 Toothpick. Recommended product for small crafting hobbies or 3d printing projects that require magnets.

### ⭐⭐⭐⭐⭐ These are the best to get
*by S***N on July 11, 2026*

Amazing magnets. I’m on my 3rd order of these. If you like making magnets and crafts, these are amazing magnets. I looked at all of them on Amazon and bought a variety pack first but found I mainly used one size so I just bought a bunch of those. The adhesive backing is very sticky and hasn’t failed me yet.

## Frequently Bought Together

- TRYMAG 300 PCS Ceramic Magnets for Crafts, Small 18mm (.709 inch) Round Disc Crafts Magnets with Adhesive Backing, Flat Circle Ferrite Industrial Magnets for Crafts, DIY, Science, Hobbies, Project
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**Shop now:** [https://www.desertcart.jp/products/541987896-trymag-magnets-for-crafts-300pcs-science-education-magnets-magnetism-kits](https://www.desertcart.jp/products/541987896-trymag-magnets-for-crafts-300pcs-science-education-magnets-magnetism-kits)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-14*