---
product_id: 10603923
title: "Diffraction Grating Rainbow Peepholes, 13500 Line/Inch, Made in USA, Package of 25"
brand: "rainbow symphony"
price: "240 kr"
currency: DKK
in_stock: true
reviews_count: 9
url: https://www.desertcart.dk/products/10603923-diffraction-grating-rainbow-peepholes-13500-line-inch-made-in-usa
store_origin: DK
region: Denmark
---

# Vibrant color spectrum Educational tool Precision optics Diffraction Grating Rainbow Peepholes, 13500 Line/Inch, Made in USA, Package of 25

**Brand:** rainbow symphony
**Price:** 240 kr
**Availability:** ✅ In Stock

## Summary

> 🌟 Ignite Curiosity with Every Glimpse!

## Quick Answers

- **What is this?** Diffraction Grating Rainbow Peepholes, 13500 Line/Inch, Made in USA, Package of 25 by rainbow symphony
- **How much does it cost?** 240 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/10603923-diffraction-grating-rainbow-peepholes-13500-line-inch-made-in-usa)

## Best For

- rainbow symphony enthusiasts

## Why This Product

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

## Key Features

- • **Pack of 25:** Share the magic with friends and colleagues!
- • **Versatile Use:** Ideal for classrooms, science fairs, and home experiments.
- • **Unleash Creativity:** Transform light into a rainbow of possibilities!
- • **Perfect for Educators:** Inspire students with hands-on learning.
- • **Precision Engineering:** 13,500 lines per inch for stunning clarity.

## Overview

The Rainbow Symphony Diffraction Grating is a package of 25 high-quality diffraction gratings featuring an impressive 13,500 lines per inch, designed to make the study of light and color engaging and memorable. Perfect for educators looking to inspire students through hands-on experiments.

## Description

Rainbow Symphony Diffraction Grating Rainbow Peepholes, 13500 Line/Inch, Made in USA, Package of 25

## Features

- Makes the study of light and color fun and unforgettable
- Features a 13,500 line/inch diffraction grating
- Ideal to use as a teacher incentive

## Images

![Diffraction Grating Rainbow Peepholes, 13500 Line/Inch, Made in USA, Package of 25 - Image 1](https://m.media-amazon.com/images/I/61+emcCUBDL.jpg)

## Available Options

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

## Questions & Answers

**Q: are these suncatchers at all**
A: The "Rainbow Peephole is not a Suncatcher. It will now create a rainbow effect on the wall when light goes through it. However if you put a peephole at the end on an empty toilet roll and put construction paper with a few holes (a holepunch makes nice holes) at the other end (tape them on), this makes what I call a pretty 'rainbow tube' effect. I teach and the younger kids love this. It demonstrates how white light is made up of the colors of the rainbow.

**Q: Will taping these on the windows around my house have the same effect as the diffraction window film?**
A: They will make very small rainbows but nothing like the decals and window films!!

**Q: How many different patterns are there (the diffraction grating film itself, not the cardboard frame)?**
A: One pattern. Double axis diffraction grating.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Brightens most anyone’s day!
  

*by L***C on Reviewed in the United States on September 9, 2020*

These are so much fun! Easy to send along with a note to anyone, kids, senior citizens- I mean who doesn’t love an instant rainbow - cheap stocking stuffers and nice to have on hand for fidgety children ( I always ask the parents first or I discreetly hand to a parent)- I carry around a few in my car just to brighten Someone’s day!!!

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Came sooner than expected.
  

*by R***Y on Reviewed in the United States on July 30, 2024*

Works great for student Kaleidoscopes

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Fun Science Activity!
  

*by J***A on Reviewed in the United States on May 28, 2019*

I gave these out to a first grade class and the kids LOVED them. Some took them home and made kaleidoscopes with them and others just played with them as is - really cute. A bit overpriced, and the first package I received only had half the discs, but Amazon quickly fixed the issue for me, and the kids were really happy with the rainbow makers :)

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**Shop now:** [https://www.desertcart.dk/products/10603923-diffraction-grating-rainbow-peepholes-13500-line-inch-made-in-usa](https://www.desertcart.dk/products/10603923-diffraction-grating-rainbow-peepholes-13500-line-inch-made-in-usa)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-22*