---
product_id: 444834559
title: "Mastery MART 28\" Heavy Duty Office Chair Base Replacement Parts, 2400 Lbs, Desk Chair Reinforced Metal Leg with Universal Gas Cylinder Hole and Casters Sockets, Matte Black"
brand: "mastery mart"
price: "68587 som"
currency: KGS
in_stock: true
category: "Mastery Mart"
url: https://www.desertcart.kg/products/444834559-mastery-mart-28-heavy-duty-office-chair-base-replacement-parts
store_origin: KG
region: Kyrgyzstan
---

# Universal fit for 2" gas cylinders & 7/16" casters 2400 lbs heavy-duty load capacity Reinforced metal with matte black finish Mastery MART 28" Heavy Duty Office Chair Base Replacement Parts, 2400 Lbs, Desk Chair Reinforced Metal Leg with Universal Gas Cylinder Hole and Casters Sockets, Matte Black

**Brand:** mastery mart
**Price:** 68587 som
**Availability:** ✅ In Stock

## Summary

> 🪑 Reinvent your throne with rock-solid support and sleek style!

## Quick Answers

- **What is this?** Mastery MART 28" Heavy Duty Office Chair Base Replacement Parts, 2400 Lbs, Desk Chair Reinforced Metal Leg with Universal Gas Cylinder Hole and Casters Sockets, Matte Black by mastery mart
- **How much does it cost?** 68587 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/444834559-mastery-mart-28-heavy-duty-office-chair-base-replacement-parts)

## Best For

- mastery mart enthusiasts

## Why This Product

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

## Key Features

- • **Floor-Friendly Design:** Low center of gravity minimizes tipping and protects your floors from damage.
- • **Sleek Matte Black Finish:** Modern powder-coated surface that resists scratches and elevates your workspace aesthetic.
- • **Cost-Effective Chair Revival:** Replace just the base to save hundreds and extend your favorite chair’s life effortlessly.
- • **Unmatched Strength & Stability:** Supports up to 2400 lbs with premium tubular iron construction for ultimate durability.
- • **Seamless Universal Compatibility:** Fits most office and gaming chairs including Herman Miller with standard gas cylinder & caster sizes.

## Overview

The MASTERY MART 28 Inch Office Chair Base is a heavy-duty, reinforced metal replacement designed to support up to 2400 lbs. Featuring a universal fit for 2" gas cylinders and 7/16" casters, it suits most office and gaming chairs, including premium brands like Herman Miller. Its matte black powder-coated finish offers durability and a modern look, while the low center of gravity ensures stability and floor protection. Easy to install and budget-friendly, this base revives your chair without the cost of a full replacement.

## Description

Mastery MART 28" Heavy Duty Office Chair Base Replacement Parts, 2400 Lbs, Desk Chair Reinforced Metal Leg with Universal Gas Cylinder Hole and Casters Sockets, Matte Black

## Features

- 🥇【Universal Size】Mastery Mart gaming chair base replacement is suitable for most chairs on the market including Herman miller (office chair, game chair, office chair, executive chair). It supports casters measuring 7/16" x 7/8" (11 mm x 22 mm) and gas cylinders with a 2" (5 cm) diameter.
- 🥇【Premium Craftsmanship】Crafted from premium chrome-plated metal, this heavy-duty base features a sleek matte finish. Its robust tubular iron construction, reinforced with heavy-duty screws, provides superior load-bearing capacity and stability, supporting weights of up to 2400 lbs.
- 🥇【Safety & Floor Protection】Our office chair base replacement prioritizes stability by maintaining a low center of gravity, helping prevent tipping and floor scratches. It not only protects your flooring but also saves you from the cost of buying a new chair.
- 🥇【Budget-Friendly Solution】Replacing just the chair base is a smart and cost-effective solution if your seat is still in good condition. Save money while keeping your favorite chair in use.
- 🥇【100% Satisfaction Guaranteed】Very easy to install and replacement with our simple and clear instruction sheet. If this doesn't fit your chair, you can simply return it.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09X4MHQP4 |
| Additional Features | Ergonomic |
| Age Range Description | Adult |
| Arm Style | Armless |
| Assembly Instructions Description | Included |
| Back Style | Solid Back |
| Best Sellers Rank | #106,654 in Home ( See Top 100 in Home ) #94 in Home Office Furniture Casters |
| Brand Name | MASTERY MART |
| Color | Matte Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (925) |
| Fill Material | Foam |
| Finish Types | Powder Coated |
| Form Factor | Metal |
| Frame Material Type | Metal |
| Furniture Base Movement | Glide |
| Furniture Finish | Chrome and Matt Black |
| Included Components | Caster |
| Indoor Outdoor Usage | Indoor |
| Is Extendable | No |
| Is Foldable | No |
| Item Depth | 28 inches |
| Item Dimensions | 71.1 x 71.1 x 10.2 centimeters |
| Item Dimensions D x W x H | 71.1D x 71.1W x 10.2H centimeters |
| Item Weight | 3 Kilograms |
| Leg Style | wheels |
| Manufacturer | Mastery Mart Co., Limited |
| Manufacturer Part Number | MM-BASE-REP-C-BLACK |
| Material Type | Metal |
| Maximum Weight Recommendation | 2400 Pounds |
| Model Number | MM-BASE-REP-C-BLACK |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pattern | Solid |
| Product Care Instructions | Wipe Clean |
| Reclining Position Count | 1 |
| Recommended Uses For Product | Gaming, Office |
| Required Assembly | No |
| Room Type | Office |
| Seat Depth | 71.1 centimeters |
| Seat Height | 28 Inches |
| Seat Material | Metal |
| Set Name | Single Item |
| Shape | cat |
| Size | 28 inches (W) x 28 inches (L) x 4 inches (H) |
| Style Name | Matte Black |
| Surface Recommendation | Hard Floor |
| Tilting | No |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** MASTERY MART
- **Colour:** Matte Black
- **Material:** Metal
- **Product dimensions:** 71.1D x 71.1W x 10.2H centimeters
- **Size:** 28 inches (W) x 28 inches (L) x 4 inches (H)

## Images

![Mastery MART 28" Heavy Duty Office Chair Base Replacement Parts, 2400 Lbs, Desk Chair Reinforced Metal Leg with Universal Gas Cylinder Hole and Casters Sockets, Matte Black - Image 1](https://m.media-amazon.com/images/I/51HZozdXLlL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does the bear in the first image come with the purchase, or do i need to buy one separately?**
A: Gotta buy it separately, but still a great product

**Q: Will this fit a serta executive high back office chair with lumbar support ergonomic upholstered swivel gaming friendly design?**
A: Can’t really say as I don’t know the chair. If it has a standard base it should fit without any issues. I used the one we bought for a gaming chair and it worked great.

**Q: Are the wheel inserts metal as well? My chair came with a metal base, but the inserts where the wheels fit into it were plastic and broke.**
A: I believe it's all metal..

**Q: Is the base one piece?**
A: No the base is not one piece.  The base must be assembled.  However, the way it constructed makes it very strong.

## Frequently Bought Together

- MASTERY MART 28" Heavy Duty Office Chair Base Replacement Parts, 2500 Lbs, Desk Chair Reinforced Metal Leg with Universal Gas Cylinder Hole and Casters Sockets, Matte Black
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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-10-12*