---
product_id: 94566211
title: "Rayson 3:1 Pitch Plastic Spiral Binding Coils, 7/16\" Diameter, 11.1mm, Binds Up to 80 Sheets, Letter Size (8.5\" x 11\"), Black, Pack of 100"
brand: "rayson"
price: "Bs.557"
currency: BOB
in_stock: true
reviews_count: 13
category: "Rayson"
url: https://www.desertcart.bo/products/94566211-rayson-3-1-pitch-plastic-spiral-binding-coils-7-16
store_origin: BO
region: Bolivia
---

# Binds up to 80 sheets 3:1 pitch for precise binding Durable black plastic coils Rayson 3:1 Pitch Plastic Spiral Binding Coils, 7/16" Diameter, 11.1mm, Binds Up to 80 Sheets, Letter Size (8.5" x 11"), Black, Pack of 100

**Brand:** rayson
**Price:** Bs.557
**Availability:** ✅ In Stock

## Summary

> 🖤 Bind Boldly, Present Perfectly!

## Quick Answers

- **What is this?** Rayson 3:1 Pitch Plastic Spiral Binding Coils, 7/16" Diameter, 11.1mm, Binds Up to 80 Sheets, Letter Size (8.5" x 11"), Black, Pack of 100 by rayson
- **How much does it cost?** Bs.557 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/94566211-rayson-3-1-pitch-plastic-spiral-binding-coils-7-16)

## Best For

- rayson enthusiasts

## Why This Product

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

## Key Features

- • **Bulk Value Pack of 100:** Ideal for busy professionals and print shops needing consistent, high-quality binding solutions.
- • **Robust 80-Sheet Capacity:** Perfectly bind medium-sized reports, presentations, or portfolios with ease.
- • **Flexible & Resilient Design:** Crafted from premium plastic that resists bending and cracking, ensuring long-lasting use.
- • **Universal Letter & A4 Size Fit:** Effortlessly compatible with both US Letter and ISO A4 paper sizes, trimmed to fit smaller formats.
- • **Precision 3:1 Pitch Compatibility:** Seamlessly fits binding machines with 3 holes per inch for flawless document assembly.

## Overview

Rayson’s 3:1 pitch plastic spiral binding coils offer a professional-grade solution for securely binding up to 80 sheets of letter or A4 size paper. Made from durable, flexible black plastic, these 7/16" diameter coils ensure uniform, reliable performance and come in a convenient pack of 100—perfect for office pros and creatives who demand quality and value.

## Description

desertcart.com : Rayson 3:1 Pitch Plastic Spiral Binding Coils, 7/16" Diameter, 11.1mm, Binds Up to 80 Sheets, Letter Size (8.5" x 11"), Black, Pack of 100 : Office Products

Review: Uniform quality you can count on - I bought one of the less expensive spiral binding machines a few years ago, and have been surprised at how often I use it. These coils are great for making small booklets. They're durable, easy to use, and dependably uniform. Very high quality. Five stars all the way.
Review: Hand - Works great

## Features

- 【3:1 Pitch Compatibility】Designed for use with binding machines that punch 3 holes per inch. Not compatible with standard 4:1 coil systems.
- 【Binds Up to 80 Sheets】Each 7/16" (11.1mm) diameter coil holds approximately 80 sheets of 20 lb paper, ideal for medium-sized documents.
- 【Flexible & Durable】Made of high-quality plastic that is lightweight, flexible, and resistant to bending or cracking during everyday use.
- 【Versatile Use】Compatible with both U.S. Letter size paper (8.5" x 11") and ISO standard A4 paper (8.3" x 11.7"). Each plastic coil measures approximately 12" in length with 36 loops and can be easily trimmed to fit shorter sizes like B5 or B6 using RAYSON coil crimper pliers.
- 【Value Pack of 100】Includes 100 black binding coils, providing excellent value for bulk users, print shops, or regular office use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07L2NZ67Y |
| Best Sellers Rank | #43,816 in Office Products ( See Top 100 in Office Products ) #39 in Binder Combs & Spines |
| Brand | RAYSON |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (336) |
| Date First Available | December 2, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 15.8 ounces |
| Item model number | 10305515 |
| Manufacturer | Rayson Electrical MFG. LTD. |
| Manufacturer Part Number | 10305515 |
| Material Type | Plastic |
| Product Dimensions | 3.31 x 5.04 x 12.05 inches |
| Sheet Size | 8.25-x-11.75-inch |
| Size | 7/16 inch (80 Sheet Capacity) |

## Images

![Rayson 3:1 Pitch Plastic Spiral Binding Coils, 7/16" Diameter, 11.1mm, Binds Up to 80 Sheets, Letter Size (8.5" x 11"), Black, Pack of 100 - Image 1](https://m.media-amazon.com/images/I/519pUZVTFlL.jpg)
![Rayson 3:1 Pitch Plastic Spiral Binding Coils, 7/16" Diameter, 11.1mm, Binds Up to 80 Sheets, Letter Size (8.5" x 11"), Black, Pack of 100 - Image 2](https://m.media-amazon.com/images/I/61D4YJQyG7L.jpg)
![Rayson 3:1 Pitch Plastic Spiral Binding Coils, 7/16" Diameter, 11.1mm, Binds Up to 80 Sheets, Letter Size (8.5" x 11"), Black, Pack of 100 - Image 3](https://m.media-amazon.com/images/I/61SvGmKaS2L.jpg)
![Rayson 3:1 Pitch Plastic Spiral Binding Coils, 7/16" Diameter, 11.1mm, Binds Up to 80 Sheets, Letter Size (8.5" x 11"), Black, Pack of 100 - Image 4](https://m.media-amazon.com/images/I/71U74m1pjBL.jpg)
![Rayson 3:1 Pitch Plastic Spiral Binding Coils, 7/16" Diameter, 11.1mm, Binds Up to 80 Sheets, Letter Size (8.5" x 11"), Black, Pack of 100 - Image 5](https://m.media-amazon.com/images/I/71bUVILckvL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Uniform quality you can count on
*by K***H on April 25, 2025*

I bought one of the less expensive spiral binding machines a few years ago, and have been surprised at how often I use it. These coils are great for making small booklets. They're durable, easy to use, and dependably uniform. Very high quality. Five stars all the way.

### ⭐⭐⭐⭐⭐ Hand
*by J***N on September 4, 2025*

Works great

### ⭐⭐⭐⭐⭐ great value
*by D***E on January 21, 2026*

As described. good quality for the price.

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**Shop now:** [https://www.desertcart.bo/products/94566211-rayson-3-1-pitch-plastic-spiral-binding-coils-7-16](https://www.desertcart.bo/products/94566211-rayson-3-1-pitch-plastic-spiral-binding-coils-7-16)

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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-02-20*