---
product_id: 375313373
title: "Amlong Crystal Premium Optical Glass Double Convex and Concave Lens Set, 50mm Diameter, 3 Double Convex (20, 30, 50cm FL) and 3 Double Concave (20, 30, 50cm FL), 6 Piece Set"
price: "₩38790"
currency: KRW
in_stock: true
reviews_count: 5
url: https://www.desertcart.kr/products/375313373-amlong-crystal-premium-optical-glass-double-convex-and-concave-lens
store_origin: KR
region: South Korea
---

# Amlong Crystal Premium Optical Glass Double Convex and Concave Lens Set, 50mm Diameter, 3 Double Convex (20, 30, 50cm FL) and 3 Double Concave (20, 30, 50cm FL), 6 Piece Set

**Price:** ₩38790
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Amlong Crystal Premium Optical Glass Double Convex and Concave Lens Set, 50mm Diameter, 3 Double Convex (20, 30, 50cm FL) and 3 Double Concave (20, 30, 50cm FL), 6 Piece Set
- **How much does it cost?** ₩38790 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/375313373-amlong-crystal-premium-optical-glass-double-convex-and-concave-lens)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Full description not available

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Very helpful in different ways
  

*by B***R on Reviewed in the United States on September 14, 2020*

I got the double concave to use with art, to check my accuracy in likenesses for portraits. The double concave ends up giving you a virtual image, as if you are looking at your drawing in the mirror, except it's not reversed. Don't ask me how it works, but it lets you see what's "off" more easily. I also bought the double convex just because it was included, but I have already used it several times to magnify small print, or zoom in on a drawing reference detail. Don't know why, but I find it much more enjoyable to use than a magnifying glass -- maybe because there's no distracting handle or frame. Very nice purchase. Glad I got both.

### ⭐⭐⭐⭐⭐ 







  
  
    Excellent for use with my fourth, fifth and sixth grade science students
  

*by D***D on Reviewed in the United States on January 23, 2020*

These work well for my students and are large enough to hold and demonstrate the differences.

### ⭐⭐⭐⭐⭐ 







  
  
    Lesson on light refraction.
  

*by E***S on Reviewed in the United States on November 15, 2020*

Used them for a lesson on light refraction for 5th grade students, worked perfectly.

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-26*