---
product_id: 51894858
title: "50 Cardboard Sleeves Folded Flat Vending 3\" x 4.5\" Sports Card Folders Mail Shipping Stiffeners Insert"
brand: "kofot"
price: "¥4702"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/51894858-50-cardboard-sleeves-folded-flat-vending-3-x-4-5
store_origin: JP
region: Japan
---

# 3" x 4.5" perfect fit 50 sturdy sleeves per pack Perforated fold for easy use 50 Cardboard Sleeves Folded Flat Vending 3" x 4.5" Sports Card Folders Mail Shipping Stiffeners Insert

**Brand:** kofot
**Price:** ¥4702
**Availability:** ✅ In Stock

## Summary

> 📦 Protect Your Passion, Ship with Confidence!

## Quick Answers

- **What is this?** 50 Cardboard Sleeves Folded Flat Vending 3" x 4.5" Sports Card Folders Mail Shipping Stiffeners Insert by kofot
- **How much does it cost?** ¥4702 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/51894858-50-cardboard-sleeves-folded-flat-vending-3-x-4-5)

## Best For

- kofot enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Folding Design:** Perforated fold lets you transform flat sleeves into rigid, protective folders in seconds.
- • **Tailored Fit for Your Cards:** Precisely sized at 3" x 4.5" to snugly protect sports, trading, and collectible cards.
- • **Bulk Pack for Serious Collectors:** 50 durable cardboard sleeves ensure you never run out during your next trade or shipment.
- • **Versatile Protection Beyond Cards:** Ideal for shipping stamps, money, jewelry, and other valuables with confidence.
- • **Self-Seal Closure for Secure Shipping:** Keep your items safe and intact with easy-to-use, reliable self-seal flaps.

## Overview

This pack of 50 white cardboard sleeves from KOFOT offers a perfect 3" x 4.5" size tailored for sports and collectible cards. Featuring a perforated fold design and self-seal closure, these sturdy, lightweight sleeves double as shipping stiffeners, ideal for safely mailing cards, stamps, money, and jewelry.

## Description

50 Cardboard Sleeves Folded Flat Vending 3" x 4.5" Sports Card Folders Mail Shipping Stiffeners Insert

## Features

- Perforated fold.
- 3" x 4.5" Folded - 3" x 9" Flat.
- Great for Shipping Crafts & Valuables.
- Stamps, Money, Jewelry, Cards.
- Baseball Football Sports Magic Cards Fit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | CSleeves |
| Brand | KOFOT |
| Item Weight | 13 ounces |
| Product Dimensions | 4.5 x 3 x 0.04 inches |
| Item model number | SG_B0725XT5ZF_US |
| Is Discontinued By Manufacturer | No |
| Color | white |
| Closure | Self-Seal |
| Shape | Rectangular |
| Material Type | Cardboard |
| Number of Items | 50 |
| Size | One Size |
| Manufacturer Part Number | 2525 |

## Product Details

- **Brand:** KOFOT
- **Color:** white
- **Closure Type:** Self-Seal
- **Material:** Cardboard
- **Number of Items:** 50

## Images

![50 Cardboard Sleeves Folded Flat Vending 3" x 4.5" Sports Card Folders Mail Shipping Stiffeners Insert - Image 1](https://m.media-amazon.com/images/I/411YMf00Y7L.jpg)

## Frequently Bought Together

- 50 Cardboard Sleeves Folded Flat Vending 3" x 4.5" Sports Card Folders Mail Shipping Stiffeners Insert
- Amazon Basics Security Self-Seal Mailing Envelope, White, 6 3/4, 100-Pack
- Aimoh #10 Security Self Seal Envelopes – 100 Qty |No Window, EnveGuard, 4⅛ x 9½", White, 24 LB, 100 Count (34100)

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**Shop now:** [https://www.desertcart.jp/products/51894858-50-cardboard-sleeves-folded-flat-vending-3-x-4-5](https://www.desertcart.jp/products/51894858-50-cardboard-sleeves-folded-flat-vending-3-x-4-5)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-24*