---
product_id: 143306058
title: "Carstens3-Inch Heavy Duty 3-Ring Binder - Side Opening, Brick Red, Durable Plastic, Precision No-Gap Rings, Waterproof Cover, No Pockets, Holds 400 US Letter Sheets, BPA-Free, Made in USA (1740-3R)"
brand: "carstens"
price: "₨27997"
currency: LKR
in_stock: true
reviews_count: 8
url: https://www.desertcart.lk/products/143306058-carstens3-inch-heavy-duty-3-ring-binder-side-opening-brick
store_origin: LK
region: Sri Lanka
---

# Waterproof, BPA-free durable polypropylene 3-inch rings hold 400 sheets Precision no-gap rings, 50,000+ open/close cycles Carstens3-Inch Heavy Duty 3-Ring Binder - Side Opening, Brick Red, Durable Plastic, Precision No-Gap Rings, Waterproof Cover, No Pockets, Holds 400 US Letter Sheets, BPA-Free, Made in USA (1740-3R)

**Brand:** carstens
**Price:** ₨27997
**Availability:** ✅ In Stock

## Summary

> 📁 Elevate your organization game with durability and style!

## Quick Answers

- **What is this?** Carstens3-Inch Heavy Duty 3-Ring Binder - Side Opening, Brick Red, Durable Plastic, Precision No-Gap Rings, Waterproof Cover, No Pockets, Holds 400 US Letter Sheets, BPA-Free, Made in USA (1740-3R) by carstens
- **How much does it cost?** ₨27997 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/143306058-carstens3-inch-heavy-duty-3-ring-binder-side-opening-brick)

## Best For

- carstens enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** Precision no-gap rings tested for over 50,000 opens and closes—reliability that lasts.
- • **Sleek & Streamlined:** No inside pockets means clutter-free, professional presentation every time.
- • **Waterproof & Resilient:** Premium BPA-free polypropylene resists bending, tearing, and scratches—perfect for on-the-go pros.
- • **Maximize Your Workspace:** Holds up to 400 US letter sheets with 3-inch heavy-duty rings for ultimate organization.
- • **Proudly American & Woman-Owned:** Support diversity and quality with a binder crafted in the USA by a certified woman-owned business.

## Overview

The Carstens 3-Inch Heavy Duty 3-Ring Binder combines robust 3-inch rings that hold up to 400 sheets with precision no-gap rings tested for 50,000+ uses. Made from waterproof, BPA-free polypropylene, it resists damage and maintains a sleek, pocket-free design. Proudly manufactured in the USA by a certified woman-owned business, this binder is built for professionals who demand durability, efficiency, and ethical sourcing.

## Description

Carstens3-Inch Heavy Duty 3-Ring Binder - Side Opening, Brick Red, Durable Plastic, Precision No-Gap Rings, Waterproof Cover, No Pockets, Holds 400 US Letter Sheets, BPA-Free, Made in USA (1740-3R)

## Features

- Ample Storage Capacity: Featuring 3-inch rings, these binders can hold up to 400 pages. Designed for simplicity and efficiency, they have no inside pockets, providing a streamlined, clutter-free organization.
- Exceptional Durability: Crafted for long-lasting use, Carstens Heavy Duty 3-Ring Binders feature precision no-gap rings tested for 50,000 opens and closes, ensuring reliable performance and long-lasting durability perfect for professionals and students alike.
- Premium Plastic Construction: Made from high-quality, durable BPA/BPF/BPS free polypropylene, these waterproof binders resist bending, folding, scratching and tearing (even in the creases). They're stronger than standard vinyl binders and the hospital-grade smooth surface makes them easy to clean.
- American-Made Excellence: Proudly manufactured in the USA of US and imported parts, these binders support local craftsmanship and guarantee superior quality control, reflecting the best of American manufacturing.
- Woman-Owned Business: Carstens is a certified WBENC woman-owned business dedicated to producing high-quality office supplies, empowering women entrepreneurs and supporting diversity in the workplace.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Carstens |
| Brand | Carstens |
| Item Weight | 1.39 pounds |
| Product Dimensions | 11.62 x 11.62 x 3.12 inches |
| Item model number | 3-3R |
| Is Discontinued By Manufacturer | No |
| Color | Red |
| Material Type | Polypropylene |
| Number of Items | 1 |
| Size | Individual |
| Sheet Size | 8.5 x 11 Inches |
| Manufacturer Part Number | 3-3R |

## Product Details

- **Color:** Red
- **Material:** Polypropylene
- **Capacity:** 4 Pounds
- **Brand:** Carstens
- **Sheet Size:** 8.5 x 11 Inches

## Images

![Carstens3-Inch Heavy Duty 3-Ring Binder - Side Opening, Brick Red, Durable Plastic, Precision No-Gap Rings, Waterproof Cover, No Pockets, Holds 400 US Letter Sheets, BPA-Free, Made in USA (1740-3R) - Image 1](https://m.media-amazon.com/images/I/71-WPH+hpYL.jpg)
![Carstens3-Inch Heavy Duty 3-Ring Binder - Side Opening, Brick Red, Durable Plastic, Precision No-Gap Rings, Waterproof Cover, No Pockets, Holds 400 US Letter Sheets, BPA-Free, Made in USA (1740-3R) - Image 2](https://m.media-amazon.com/images/I/5198khwkBuL.jpg)
![Carstens3-Inch Heavy Duty 3-Ring Binder - Side Opening, Brick Red, Durable Plastic, Precision No-Gap Rings, Waterproof Cover, No Pockets, Holds 400 US Letter Sheets, BPA-Free, Made in USA (1740-3R) - Image 3](https://m.media-amazon.com/images/I/71-WPH+hpYL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Heavy duty!
*by M***N on April 12, 2025*

These binders live up to their name! Super durable and super worth it! Bought ours to use as scrapbooks.

### ⭐⭐⭐⭐⭐ Very heavy-duty units. Just the way I like them!
*by S***A on April 19, 2025*

Heavy duty binders that will last generations!

### ⭐⭐⭐⭐⭐ Great quality and beautiful
*by P***Z on March 12, 2025*

I adore this! It looks like moss agate. Im so glad I found this! It’s great quality, strong and beautiful.

## Frequently Bought Together

- Carstens 3-Inch Heavy Duty 3-Ring Binder - Side Opening, Brick Red, Durable Plastic, Precision No-Gap Rings, Waterproof Cover, No Pockets, Holds 400 US Letter Sheets, BPA-Free, Made in USA (1740-3R)
- Carstens 2-Inch Heavy Duty 3-Ring Binder - Side Opening, Black, Durable Plastic, Precision No-Gap Rings, Waterproof Covers, No Pockets, Holds 300 Letter-Sized Sheets, BPA-Free, Made in USA (5829-3R)
- Carstens Heavy Duty Plastic Dividers, 11-Tab, Multi-Color, Blank, for Side-Opening 3-Ring Binders

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**Shop now:** [https://www.desertcart.lk/products/143306058-carstens3-inch-heavy-duty-3-ring-binder-side-opening-brick](https://www.desertcart.lk/products/143306058-carstens3-inch-heavy-duty-3-ring-binder-side-opening-brick)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-16*