---
product_id: 500816526
title: "20pcs Double Convex Optical Lens for Magnifier - 42mm Diameter Biconvex Plastic Lens for Magnification"
brand: "ultechnovo"
price: "136 zł"
currency: PLN
in_stock: true
reviews_count: 4
url: https://www.desertcart.pl/products/500816526-20pcs-double-convex-optical-lens-for-magnifier-42mm-diameter-biconvex
store_origin: PL
region: Poland
---

# 20pcs Replacement 42mm Diameter Optically Processed Glass 20pcs Double Convex Optical Lens for Magnifier - 42mm Diameter Biconvex Plastic Lens for Magnification

**Brand:** ultechnovo
**Price:** 136 zł
**Availability:** ✅ In Stock

## Summary

> 🔍 See the world in a new light!

## Quick Answers

- **What is this?** 20pcs Double Convex Optical Lens for Magnifier - 42mm Diameter Biconvex Plastic Lens for Magnification by ultechnovo
- **How much does it cost?** 136 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/500816526-20pcs-double-convex-optical-lens-for-magnifier-42mm-diameter-biconvex)

## Best For

- ultechnovo enthusiasts

## Why This Product

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

## Key Features

- • **📦 Always Prepared:** Receive 20 replacement lenses to keep your magnifying experience seamless and uninterrupted.
- • **🧪 Durable & Reliable:** Crafted from premium optically processed glass, ensuring breakage resistance and longevity.
- • **🌍 Portable Convenience:** Easily fits in your pocket, making it the perfect companion for on-the-go magnification.
- • **🔍 Crystal Clear Vision:** Experience unparalleled clarity with our 42mm diameter biconvex lens, designed for precision.
- • **📚 Educational Essential:** Ideal for physics demonstrations and light refraction experiments, enhancing learning experiences.

## Overview

The 20pcs Double Convex Optical Lens features a 42mm diameter, made from premium optically processed glass for durability and clarity. This set includes 20 replacement lenses, perfect for daily use and educational demonstrations in physics. Its portable design allows for easy storage and transport, making it an essential tool for both professionals and enthusiasts.

## Description

20pcs Double Convex Optical Lens for Magnifier - 42mm Diameter Biconvex Plastic Lens for Magnification

## Features

- - 42mm diameter magnifying glass optics lens made of premium optically processed glass with highly polished and ground edges for breakage resistance and durability.
- LENS REPLACEMENT - Regular replacement of the magnifier lens helps to see items better, you will receive 20 magnifier replacements to replace old or broken magnifiers.
- EASY TO PORT - The double convex lens is portable, easy to store in your pocket and take it anywhere, suitable for daily use.
- PHYSICAL OPTICS - This optics real lens is suitable for physics classroom demonstrations of optics and light refraction, and can also be used as a magnifying glass lens to observe small things.
- OUR SERVICE - Since glass products are fragile products, if you are not satisfied with our magnifying glass or receive broken products, please feel to let us know, we will try our best to solve the problem for you.

## Product Details

- **Brand:** ULTECHNOVO
- **Color:** Picture 1
- **Batteries Required?:** No
- **Item Weight:** 0.33 Pounds
- **Lens Material:** Glass

## Images

![20pcs Double Convex Optical Lens for Magnifier - 42mm Diameter Biconvex Plastic Lens for Magnification - Image 1](https://m.media-amazon.com/images/I/618ENgDCgTL.jpg)
![20pcs Double Convex Optical Lens for Magnifier - 42mm Diameter Biconvex Plastic Lens for Magnification - Image 2](https://m.media-amazon.com/images/I/51Z32PCbEbL.jpg)
![20pcs Double Convex Optical Lens for Magnifier - 42mm Diameter Biconvex Plastic Lens for Magnification - Image 3](https://m.media-amazon.com/images/I/711vGC5t1OL.jpg)
![20pcs Double Convex Optical Lens for Magnifier - 42mm Diameter Biconvex Plastic Lens for Magnification - Image 4](https://m.media-amazon.com/images/I/614vXsa8tZL.jpg)
![20pcs Double Convex Optical Lens for Magnifier - 42mm Diameter Biconvex Plastic Lens for Magnification - Image 5](https://m.media-amazon.com/images/I/6105DBrT5jL.jpg)

## Customer Reviews

### ⭐⭐ Not for me
*by B***R on April 27, 2025*

Plastic, cheap, did not even use.

### ⭐⭐⭐⭐⭐ Very useful for lighting effects
*by N***G on September 23, 2024*

These lenses are perfect for making spotlights out of led lighting. They are meant to be used for magnifying glasses I'm guessing, but for my purposes they were perfect! For the sake of review I used one to magnify some of the items around my house and they work perfectly for their original purpose. But as mentioned, these are great for a lot of purposes.

### ⭐ Beware. Not a glass lens. Single Convex Plastic. Dissapointing.
*by J***H on March 19, 2024*

I was super excited! My class was thrilled to hit the playground and inspect bugs. I wanted a glass lens that would be durable for my kids. Very disappointing.

## Frequently Bought Together

- Lens for Magnifier Magnifying Glass Lens- 20Pcs Double Convex Optical Lens for Magnifier 42mm Diameter Biconvex Lens Plastic Lens
- Optical 3D Lens for Magnifier - 20 Pcs 42mm Diameter Double Convex Lenses 68mm Focal Lengths Biconvex Lens Magnifying Glass Lens Optical Plastic Lens

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**Shop now:** [https://www.desertcart.pl/products/500816526-20pcs-double-convex-optical-lens-for-magnifier-42mm-diameter-biconvex](https://www.desertcart.pl/products/500816526-20pcs-double-convex-optical-lens-for-magnifier-42mm-diameter-biconvex)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-24*