---
product_id: 638095584
title: "BONTEC Small Ergonomics Desk Extender Tray, 20x9.5 Inch Table Mount Arm Rest Shelf, 90° Foldable Keyboard Tray Platform, Clamp on Computer Arm Rest for Desk, Suitable for Office Desks, Black"
brand: "bontec"
price: "¥14280"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/638095584-bontec-small-ergonomics-desk-extender-tray-20x9-5-inch-table
store_origin: JP
region: Japan
---

# Supports 33 lbs 20x9.5 inch surface Easy installation BONTEC Small Ergonomics Desk Extender Tray, 20x9.5 Inch Table Mount Arm Rest Shelf, 90° Foldable Keyboard Tray Platform, Clamp on Computer Arm Rest for Desk, Suitable for Office Desks, Black

**Brand:** bontec
**Price:** ¥14280
**Availability:** ✅ In Stock

## Summary

> 🖥️ Elevate your workspace, elevate your game!

## Quick Answers

- **What is this?** BONTEC Small Ergonomics Desk Extender Tray, 20x9.5 Inch Table Mount Arm Rest Shelf, 90° Foldable Keyboard Tray Platform, Clamp on Computer Arm Rest for Desk, Suitable for Office Desks, Black by bontec
- **How much does it cost?** ¥14280 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/638095584-bontec-small-ergonomics-desk-extender-tray-20x9-5-inch-table)

## Best For

- bontec enthusiasts

## Why This Product

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

## Key Features

- • **Quick Setup:** Pre-assembled for a hassle-free installation in under a minute.
- • **Multi-Functional:** More than just an armrest—it's your new workspace companion!
- • **Durable & Stylish:** Crafted from premium materials for a sleek, modern look.
- • **Space-Saving Design:** 90° foldable for effortless storage.
- • **Ergonomic Excellence:** Say goodbye to discomfort and hello to productivity!

## Overview

The BONTEC Small Ergonomics Desk Extender Tray is a versatile and stylish addition to any office setup. Measuring 20x9.5 inches, this foldable armrest shelf supports up to 33 lbs and features an ergonomic design that alleviates pressure on your arms and shoulders. With easy installation and durable materials, it’s perfect for enhancing your workspace without damaging your desk.

## Description

BONTEC Small Ergonomics Desk Extender Tray, 20x9.5 Inch Table Mount Arm Rest Shelf, 90° Foldable Keyboard Tray Platform, Clamp on Computer Arm Rest for Desk, Suitable for Office Desks, Black

## Features

- 𝐔𝐩𝐠𝐫𝐚𝐝𝐞𝐝 𝐒𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞: Our upgraded small desk arm rest is equipped with adjustable double C-clamp, compatible for desks with thickness up to 4.7 inch. The outer sides of the extender tray are rounded, protecting users from scratches. The black surface is wear-resistant and waterproof, making it easy to clean.
- 𝐄𝐫𝐠𝐨𝐧𝐨𝐦𝐢𝐜 𝐃𝐞𝐬𝐢𝐠𝐧: This small arm rest extends from the desk, fully supporting and relaxing your arm so as to improve work conditions. Repeated improvements have been adopted to find the optimum ergonomic solution, greatly relieving pain in the neck, shoulder, arm and wrist, and reducing the pressure on the elbow by up to 90%.
- 𝐄𝐚𝐬𝐲 & 𝐅𝐚𝐬𝐭 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧: Pre-assembled, and in most cases, all that you need to do is tighten the four screws which only takes a minute before it is ready for use. The manual knob supports fast installation and disassembly, realizing multi scene conversion and use. Non-hole installation ensures that the desktop is undamaged.
- 𝐏𝐫𝐨𝐝𝐮𝐜𝐭 𝐬𝐩𝐞𝐜𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬: It is 90° foldable to save space and be easy to store. Sturdy structure can securely hold up to 33 lbs with the size of the support board 20x9.5 inch. Please make sure that your desktop does not exceed a thickness of 4.7 inch. And the distance from the aprons to the edge of the desk should be larger than 2 inches.
- 𝐏𝐫𝐞𝐦𝐢𝐮𝐦 𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥: This product employs premium MDF sheet and anti-rust steel sheet with coating, environmentally-friendly, durable and without odor. This multi-purpose desk arm tray can serve as arm rest, shelf, desktop extension board, computer mouse pad and equipment support, etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | BONTEC |
| Brand | BONTEC |
| Item Weight | 6.34 pounds |
| Package Dimensions | 21.1 x 10.79 x 4.02 inches |
| Item model number | EH04-BK |
| Color | Black |
| Shape | Rectangular |
| Material Type | MDF |
| Number of Items | 1 |
| Size | 20"*9.5"(51cm*24cm) |
| Manufacturer Part Number | EH04-BK |

## Images

![BONTEC Small Ergonomics Desk Extender Tray, 20x9.5 Inch Table Mount Arm Rest Shelf, 90° Foldable Keyboard Tray Platform, Clamp on Computer Arm Rest for Desk, Suitable for Office Desks, Black - Image 1](https://m.media-amazon.com/images/I/71nfzOZanGL.jpg)
![BONTEC Small Ergonomics Desk Extender Tray, 20x9.5 Inch Table Mount Arm Rest Shelf, 90° Foldable Keyboard Tray Platform, Clamp on Computer Arm Rest for Desk, Suitable for Office Desks, Black - Image 2](https://m.media-amazon.com/images/I/81pnK31VtML.jpg)
![BONTEC Small Ergonomics Desk Extender Tray, 20x9.5 Inch Table Mount Arm Rest Shelf, 90° Foldable Keyboard Tray Platform, Clamp on Computer Arm Rest for Desk, Suitable for Office Desks, Black - Image 3](https://m.media-amazon.com/images/I/71L5OriOiML.jpg)
![BONTEC Small Ergonomics Desk Extender Tray, 20x9.5 Inch Table Mount Arm Rest Shelf, 90° Foldable Keyboard Tray Platform, Clamp on Computer Arm Rest for Desk, Suitable for Office Desks, Black - Image 4](https://m.media-amazon.com/images/I/81sRonY01EL.jpg)
![BONTEC Small Ergonomics Desk Extender Tray, 20x9.5 Inch Table Mount Arm Rest Shelf, 90° Foldable Keyboard Tray Platform, Clamp on Computer Arm Rest for Desk, Suitable for Office Desks, Black - Image 5](https://m.media-amazon.com/images/I/81hCV1To0CL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy install & operation. Everything i expected.
*by B***N on December 21, 2024*

Loving this desk extender so far. I've been using it for a couple weeks to add more room for my computer desk. I use it to hold my keyboard, wrist rest, and Streamdeck. These are my observations:- There are 6 screws you have to put in to secure the shelf to the hardware; 3 on each side. Easy installation.- This wood shelf has these metal studs already built-in where screws go into, which means the screws don't actually dig into the wood and so you don't risk stripping the wood. It's a sign of a quality install.- Once mounted on your desk, the shelf surface is level with the top of the steel bracket. It would've been better if the shelf was level to the desk surface that it's mounted on. The difference is only about 2mm though. This is my only nitpick.- I bought the faux-carbon fiber version, which doesn't look like real carbon fiber but still looks good overall in my opinion.- The hardware feels very solid and the shelf lies perfectly flat when extended.- The latches are very easy to operate and you have to operate both latches at the same time to put the shelf back down. This means that even if one latch fails, it will still hold up.- When you fold the shelf back up, the latches will auto-lock into place which gives off a very satisfying and reassuring click.- I have a very thin solid-steel desk that's only about 2-3mm thick and I was able to mount it easily without having to add many spacers.

### ⭐⭐⭐⭐⭐ More than just an arm rest.
*by P***0 on March 6, 2025*

For years, I've put up with a slide out keyboard drawer on my old desk which hit my knees. After looking at extensions for months, I saw this one and tried it. All I had to do was remove the faux drawer face on my desk for some extra clearance. It fit on to a 21 inch opening with room to spare. I use my keyboard on the shelf. The only assembly is joining the bracket to the shelf with 6 machine screws. Planned or not, the inclusion of an extra screw was a nice touch. A sturdy, well made and useful addition.

### ⭐⭐⭐⭐⭐ Sturdy and Easy to Install!
*by K***R on February 5, 2025*

Just a simple design made very sturdy. Love it!!!

## Frequently Bought Together

- BONTEC Small Ergonomics Desk Extender Tray, 20x9.5 Inch Table Mount Arm Rest Shelf, 90° Foldable Keyboard Tray Platform, Clamp on Computer Arm Rest for Desk, Suitable for Office Desks, Black
- BONTEC Ergonomics Desk Extender Tray, 9.5"x9.1" Table Mount Arm Wrist Rest Shelf, 90° Foldable Elbow Arm Support, Clamp on Computer Arm Rest for Desk, Suitable for Office Desks

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-02*