---
product_id: 15184017
title: "Rainbow Symphony Diffraction Grating Rainbow Peepholes, 13500 Line/Inch, Made in USA, Package of 50"
brand: "rainbow symphony"
price: "€ 38.77"
currency: EUR
in_stock: true
reviews_count: 8
category: "Rainbow Symphony"
url: https://www.desertcart.fr/products/15184017-rainbow-symphony-diffraction-grating-rainbow-peepholes-13500-line-inch-made
store_origin: FR
region: France
---

# 13500 lines/inch diffraction precision Double axis holographic lenses Made in USA quality assurance Rainbow Symphony Diffraction Grating Rainbow Peepholes, 13500 Line/Inch, Made in USA, Package of 50

**Brand:** rainbow symphony
**Price:** € 38.77
**Availability:** ✅ In Stock

## Summary

> 🌈 Unlock the spectrum of fun—carry a pocket rainbow wherever you go!

## Quick Answers

- **What is this?** Rainbow Symphony Diffraction Grating Rainbow Peepholes, 13500 Line/Inch, Made in USA, Package of 50 by rainbow symphony
- **How much does it cost?** € 38.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/15184017-rainbow-symphony-diffraction-grating-rainbow-peepholes-13500-line-inch-made)

## 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

- • **Proudly American Made:** Support quality and craftsmanship with every pack of 50 diffraction peepholes made in the USA.
- • **Educational & Entertaining:** Ideal for classrooms and curious minds to explore light and color in a hands-on, mesmerizing way.
- • **Pocket-Sized Party Starter:** Compact 1 11/16" diameter discs perfect for spontaneous fun and unforgettable social moments.
- • **Spectral Brilliance Unleashed:** Experience vivid, multi-dimensional rainbows with ultra-fine 13,500 line/inch diffraction grating.
- • **Crafted for Quality & Reusability:** Durable double axis holographic lenses designed to last and deliver consistent optical magic.

## Overview

Rainbow Symphony Diffraction Grating Rainbow Peepholes feature ultra-fine 13,500 line/inch double axis holographic lenses that break light into vivid spectral rainbows. Made in the USA with durable materials, these 1 11/16" diameter peepholes come in a convenient pack of 50, perfect for educational use, parties, and spontaneous moments of colorful wonder.

## Description

Fun with Diffraction Gratings!! Preprinted Rainbow Peepholes. Always in stock and ready to ship. The ideal teacher incentive. Great in the classroom when a quality diffraction grating is needed for the study of Light and Color. Just look through your Rainbow Peephole at any light source...the rainbow starbursts will amaze you! RAINBOW PEEPHOLES: 13,500 Line/Inch Diffraction Grating - 1 11/16" Diameter, 1/2" Window - Heavy Cardboard.

Review: Fantastic Fun for Kids & Adults Too! - I like to keep a few trinkets in my pocket or purse in case nearby kiddos get tantrum-y at grocery stores, on planes, restaurants, etc. (I always get parent permission, of course!) These are SO GREAT for handouts. They're basically cardboard monocles made out of the same stuff as "fireworks glasses" they sell around July 4th. Looking through them turns every light source into dazzling rainbows. Kids adore them and if I'm ever blue, I squint through one and the rainbows really lift my spirits. They're great!
Review: So cute - I added these to kandi & gave them out at electric forest. Huge hit & easy to carry around a fest for rave gifts :)

## Features

- DIFFRACTION GRATING: Rainbow Symphony's Double Axis Diffraction Grating Peepholes (13500 line/inch) can be used to replace diffraction glasses. They both have microscopic slits that take light and break it down into its spectral components, allowing you to study light and color in fun and unforgettable way.
- QUALITY MATERIALS: Our diffraction circles were designed to be reusable, with quality double axis, holographic, diffraction grating lenses to separate light from any source, including spectrum gas tubes. Do NOT use to look directly at the sun.
- VIVID COLORS: Experience an array of colors as they view the color spectrum in a new and unique way.
- PARTIES: These handy pocket prism rainbow makers are a hit at any party. Keep entertained with rainbow light.
- MADE IN USA: All of Rainbow Symphony's holographic Peepholes are made in America to ensure the quality.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00K6K2WYG |
| Best Sellers Rank | #162,350 in Toys & Games ( See Top 100 in Toys & Games ) #63 in Prisms & Kaleidoscopes |
| Brand Name | Rainbow Symphony |
| Color | Rainbow |
| Customer Reviews | 4.5 out of 5 stars 90 Reviews |
| Educational Objective | Learn about optics and the visible spectrum |
| Manufacturer | Rainbow Symphony |
| Material Type | Cardboard |
| Operation Mode | Manual |
| Size | 50 |
| Supported Battery Types | No batteries required |
| Theme | Rainbow |
| UPC | 019317402827 |
| Unit Count | 50.0 Count |

## Images

![Rainbow Symphony Diffraction Grating Rainbow Peepholes, 13500 Line/Inch, Made in USA, Package of 50 - 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

### ⭐⭐⭐⭐⭐ Fantastic Fun for Kids & Adults Too!
*by D***. on December 23, 2018*

I like to keep a few trinkets in my pocket or purse in case nearby kiddos get tantrum-y at grocery stores, on planes, restaurants, etc. (I always get parent permission, of course!) These are SO GREAT for handouts. They're basically cardboard monocles made out of the same stuff as "fireworks glasses" they sell around July 4th. Looking through them turns every light source into dazzling rainbows. Kids adore them and if I'm ever blue, I squint through one and the rainbows really lift my spirits. They're great!

### ⭐⭐⭐⭐⭐ So cute
*by V***R on July 10, 2023*

I added these to kandi & gave them out at electric forest. Huge hit & easy to carry around a fest for rave gifts :)

### ⭐⭐⭐⭐⭐ Brightens most anyone’s day!
*by L***C 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!!!

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-03-01*