---
product_id: 190668513
title: "Prime OP - Modern Stainless Steel Post Mount Mailbox with Lock and Key, Waterproof Square Mid-Century Mailbox for Outside, Large Double Door Rear Access, 17\" x 11\" x 7\" (White Oak)"
brand: "katanabox"
price: "€ 1074.03"
currency: EUR
in_stock: true
reviews_count: 1
category: "Katanabox"
url: https://www.desertcart.com.cy/products/190668513-prime-op-modern-stainless-steel-post-mount-mailbox-with-lock
store_origin: CY
region: Cyprus
---

# 17"x11"x7" large capacity Secure lock & 2 keys Waterproof & rustproof stainless steel Prime OP - Modern Stainless Steel Post Mount Mailbox with Lock and Key, Waterproof Square Mid-Century Mailbox for Outside, Large Double Door Rear Access, 17" x 11" x 7" (White Oak)

**Brand:** katanabox
**Price:** € 1074.03
**Availability:** ✅ In Stock

## Summary

> 📬 Elevate your curb appeal with secure, stylish mail delivery!

## Quick Answers

- **What is this?** Prime OP - Modern Stainless Steel Post Mount Mailbox with Lock and Key, Waterproof Square Mid-Century Mailbox for Outside, Large Double Door Rear Access, 17" x 11" x 7" (White Oak) by katanabox
- **How much does it cost?** € 1074.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/190668513-prime-op-modern-stainless-steel-post-mount-mailbox-with-lock)

## Best For

- katanabox enthusiasts

## Why This Product

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

## Key Features

- • **Versatile & Secure:** Perfect for residential or commercial use, combining style with top-tier mail protection.
- • **Double-Door Convenience:** Rear access with lockable double doors ensures easy, secure mail retrieval every time.
- • **Built to Brave the Elements:** Premium Japanese stainless steel resists rust, rain, and sand for lasting durability.
- • **Mid-Century Modern Elegance:** Sleek, minimalist design elevates curb appeal with a timeless, sophisticated aesthetic.
- • **Spacious & Ready for Anything:** Extra-large 17"x11"x7" size fits bulk mail, magazines, and small parcels effortlessly.

## Overview

The KATANABOX Prime OP is a premium Japanese-made stainless steel post-mount mailbox featuring a large 17"x11"x7" capacity, double-door rear access with lock and key security, and a weatherproof, rustproof design. Its modern mid-century style complements contemporary homes while providing versatile, secure mail storage ideal for residential and commercial use.

## Description

Product description KATANABOX Modern Mailboxes A mailbox is the first part of your house to greet visitors and passersby – it’s a metaphorical handshake extending out to the world. Why not give it the consideration it deserves? You know what they say about first impressions. Based in Tokyo, the KATANABOX Modern Series i s the ultimate name in contemporary luxury mailboxes. Designed and crafted in Japan, KATANABOX embodies Japanese sensibilities in its simple yet sleek design, making use of high quality Japanese stainless steel to protect your postbox from rain, sand, rust, and all kinds of weather conditions. The sturdy frame is compounded with a lock and key system that keeps your postage safe. The series offers a wide variety of colors and features to re-imagine the traditional mailbox and provide a subtle yet striking accent to your home. **NOTE** Due to its lock & key security, KATANABOX does NOT handle outgoing mail. **POST SOLD SEPARATELY** This product is the Post Mount type. It is highly recommended that you purchase in combination with a KATANABOX Post. Materials Japanese Stainless Steel Color Accents: Weatherability, UV resistant, Durable Japanese PVC Dimensions Body (Height x Width x Depth): 7.3 in. x 11.4 in. x 19.4 in. Weight: 20.1 lbs Mail Slot (Height x Width): 1.4 in. x 10.4 in. The KATANABOX Prime OP features How to withdraw mail Short for "opening" type, the OP Series (Post-mount) features an easy-to-use lockable door for simple withdrawal. Mail is easily inserted through the slot on the front, and removed using the lockable door at the back. Simple and secure! Check out our KATANABOX DR Series for more withdrawal options. (Due to the lockable nature of KATANABOX, it does not handle outgoing mail.) The KATANABOX Prime OP KATANABOX Prime is the flagship of the KATANABOX brand. Made in Japan, the modern design of the Prime series is carefully crafted to take the traditional "tunnel" mailbox shape into the future. KATANABOX also takes pride in its large storage capacity, its dependable lock & key security, and its sturdy, long-lasting frame. Set your home or business apart from all others with a one-of-a-kind KATANABOX mailbox. Sourced and Made in Japan High Quality Stainless Steel Body Waterproof / Rustproof / Weatherproof Lockable (Key Included) Extremely Durable Large Capacity Lockable Door w/ Hinge Comes w/ mounting plate for our post (or a post of the same dimensions) Stainless Steel Frame KATANABOX is built from high quality stainless steel and fashioned with care by our metalworkers in Japan. This mailbox will not only keep your mail safe and secure, but is resistant to rust that would break down an ordinary steel mailbox over time. With a sturdy, rustproof frame and high capacity, KATANABOX not only looks great, but is practical as well. Weatherproof Design KATANABOX is resistant to the elements. Its stainless steel body is waterproof, rustproof, and sandproof to prevent damage from weather, ensuring that your mailbox stays in excellent condition for a long time. KATANABOX is also designed to prevent rain from entering into the mailbox during a storm, keeping your mail safe and dry in all conditions. Highly Secure with Lock & Key KATANABOX keeps your mail safe with lock and key security. Postage can be inserted at any time through the mail slot at the front, but can only be removed with the key (though KATANABOX will stay closed even without the key). The stainless steel mail slot is also designed to prevent anyone from reaching in through the front. Your privacy is important! Photos sent from valued our customers…

Review: Sleek modern design with world class customer service - We are very happy with our KATANABOX Prime OP - Stainless Steel Post Box with the modern design. I accidentally purchased it with the incorrect DR post and couldn’t figure out why it didn’t fit. The customer service representative was wonderful because when I explained by e-mail what I purchased, the they told me the very next morning to purchase the OP post and gave me credit for the DR post. Thank you Fuzuki! The KATANABOX is a very stylish well-made post box and it is a lovely finish to our new home. I would highly recommend it to anyone looking for a truly sophisticated post box. A very satisfied customer!

## Features

- LARGE CAPACITY POST MOUNT MAILBOX: This modern mailbox with post mount design measures 17" x 11" x 7" with a drop slot of 10.0" x 1.3". Its extra-large capacity holds bulk mail, padded envelopes, newspapers, magazines, and small parcels, making it perfect for outside use on residential or rural properties.
- DOUBLE DOOR REAR ACCESS: Designed for convenience, this double-door mailbox allows rear access for easy mail retrieval. The secure locking mechanism comes with two keys for added convenience, protecting your mail from theft and ensuring privacy.
- DURABLE & WEATHERPROOF DESIGN: Made from high-quality stainless steel, this rust-proof and waterproof mailbox resists the elements. Its magnetic cover ensures rain stays out, while the square mailbox shape adds a sleek, modern aesthetic.
- MODERN MID-CENTURY STYLE: This stainless steel mailbox features a minimalist design that complements modern and mid-century homes. Its post mount style offers versatility for both curbside and outdoor wall installations, adding a contemporary touch to your home or business.
- VERSATILE RESIDENTIAL OR COMMERCIAL USE: Ideal as a post mount mailbox for outside with post, this large-capacity mailbox fits various applications, from houses and apartments to rural properties. It doubles as a secure dropbox or letterbox for offices, ensuring safety and style in one package.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | KATANABOX |
| Color | White Oak |
| Included Security Features | Lockable |
| Material | Stainless Steel |
| Mounting Type | Post Mount |
| Style | Modern Mailbox |

## Product Details

- **Brand:** KATANABOX
- **Color:** White Oak
- **Included Security Features:** Lockable
- **Material:** Stainless Steel
- **Mounting Type:** Post Mount

## Images

![Prime OP - Modern Stainless Steel Post Mount Mailbox with Lock and Key, Waterproof Square Mid-Century Mailbox for Outside, Large Double Door Rear Access, 17" x 11" x 7" (White Oak) - Image 1](https://m.media-amazon.com/images/I/61X5hxJXJ7L.jpg)
![Prime OP - Modern Stainless Steel Post Mount Mailbox with Lock and Key, Waterproof Square Mid-Century Mailbox for Outside, Large Double Door Rear Access, 17" x 11" x 7" (White Oak) - Image 2](https://m.media-amazon.com/images/I/611AboBCIsL.jpg)
![Prime OP - Modern Stainless Steel Post Mount Mailbox with Lock and Key, Waterproof Square Mid-Century Mailbox for Outside, Large Double Door Rear Access, 17" x 11" x 7" (White Oak) - Image 3](https://m.media-amazon.com/images/I/81uULLVPb7L.jpg)
![Prime OP - Modern Stainless Steel Post Mount Mailbox with Lock and Key, Waterproof Square Mid-Century Mailbox for Outside, Large Double Door Rear Access, 17" x 11" x 7" (White Oak) - Image 4](https://m.media-amazon.com/images/I/71ZpqWzdhVL.jpg)
![Prime OP - Modern Stainless Steel Post Mount Mailbox with Lock and Key, Waterproof Square Mid-Century Mailbox for Outside, Large Double Door Rear Access, 17" x 11" x 7" (White Oak) - Image 5](https://m.media-amazon.com/images/I/516eHYL5LfL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Sleek modern design with world class customer service
*by A***Y on October 15, 2019*

We are very happy with our KATANABOX Prime OP - Stainless Steel Post Box with the modern design. I accidentally purchased it with the incorrect DR post and couldn’t figure out why it didn’t fit. The customer service representative was wonderful because when I explained by e-mail what I purchased, the they told me the very next morning to purchase the OP post and gave me credit for the DR post. Thank you Fuzuki! The KATANABOX is a very stylish well-made post box and it is a lovely finish to our new home. I would highly recommend it to anyone looking for a truly sophisticated post box. A very satisfied customer!

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-02*