---
product_id: 683394707
title: "Stayflats Plus Mailers | Rigid Shipping Envelopes | Tamper Evident Security with Peel & Seal Pressure Sensitive Closure | Built-in Corner Protection| White | 25 Per Case | 12-3/4\" x 15\""
price: "S$183"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/683394707-stayflats-plus-mailers-rigid-shipping-envelopes-tamper-evident-security-peel
store_origin: SG
region: Singapore
---

# Stayflats Plus Mailers | Rigid Shipping Envelopes | Tamper Evident Security with Peel & Seal Pressure Sensitive Closure | Built-in Corner Protection| White | 25 Per Case | 12-3/4" x 15"

**Price:** S$183
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Stayflats Plus Mailers | Rigid Shipping Envelopes | Tamper Evident Security with Peel & Seal Pressure Sensitive Closure | Built-in Corner Protection| White | 25 Per Case | 12-3/4" x 15"
- **How much does it cost?** S$183 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/683394707-stayflats-plus-mailers-rigid-shipping-envelopes-tamper-evident-security-peel)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Stayflats Plus Mailers | Rigid Shipping Envelopes | Tamper Evident Security with Peel & Seal Pressure Sensitive Closure | Built-in Corner Protection| White | 25 Per Case | 12-3/4" x 15"

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Calumet Carton Company |
| Brand | Stayflats |
| Item Weight | 9 pounds |
| Product Dimensions | 12.75 x 0.03 x 15 inches |
| Item model number | 4 PSW 25 |
| Color | White |
| Closure | Self-Seal |
| Shape | Rectangular |
| Material Type | Clay Coated Newsback |
| Number of Items | 1 |
| Size | 12.75" x 15" - 25 count |
| Manufacturer Part Number | 4 PSW 25 |

## Product Details

- **Brand:** Stayflats
- **Color:** White
- **Closure Type:** Self-Seal
- **Material:** Clay Coated Newsback
- **Number of Items:** 1

## Images

![Stayflats Plus Mailers | Rigid Shipping Envelopes | Tamper Evident Security with Peel & Seal Pressure Sensitive Closure | Built-in Corner Protection| White | 25 Per Case | 12-3/4" x 15" - Image 1](https://m.media-amazon.com/images/I/61EPAPn1MrL.jpg)

## Frequently Bought Together

- Stayflats Plus Mailers | Rigid Shipping Envelopes | Tamper Evident Security with Peel & Seal Pressure Sensitive Closure | Built-in Corner Protection| White | 25 Per Case | 12-3/4" x 15"
- FirstZi 1x3 Inches Handle with Care - Do Not Bend - Thank You Self Adhesive Shipping Warning Labels for USPS Envelope, 1000 Stickers Per Roll
- 9527 Product 4x6 Direct Thermal Shipping Labels for Zebra 2844 ZP-450 ZP-500 ZP-505,Blank,450 Labels/Roll, 1" Core,Total 4 Rolls

---

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**Shop now:** [https://www.desertcart.sg/products/683394707-stayflats-plus-mailers-rigid-shipping-envelopes-tamper-evident-security-peel](https://www.desertcart.sg/products/683394707-stayflats-plus-mailers-rigid-shipping-envelopes-tamper-evident-security-peel)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-19*