---
product_id: 291011840
title: "MASTERY MART Heavy Duty Office Chair Base Replacement, 2500 Lbs, 28\"(70 cm), Metal Desk Chair Base Replacement Parts with Universal Gas Cylinder Hole and Casters Sockets, Matte Black"
brand: "mastery mart"
price: "₱32672"
currency: PHP
in_stock: true
reviews_count: 13
category: "Mastery Mart"
url: https://www.desertcart.ph/products/291011840-mastery-mart-heavy-duty-office-chair-base-replacement-2500-lbs
store_origin: PH
region: Philippines
---

# Universal 28" diameter fits most chairs Supports up to 2500 lbs load Easy install with included guide & tools MASTERY MART Heavy Duty Office Chair Base Replacement, 2500 Lbs, 28"(70 cm), Metal Desk Chair Base Replacement Parts with Universal Gas Cylinder Hole and Casters Sockets, Matte Black

**Brand:** mastery mart
**Price:** ₱32672
**Availability:** ✅ In Stock

## Summary

> 🪑 Upgrade your throne — heavy-duty comfort meets sleek style!

## Quick Answers

- **What is this?** MASTERY MART Heavy Duty Office Chair Base Replacement, 2500 Lbs, 28"(70 cm), Metal Desk Chair Base Replacement Parts with Universal Gas Cylinder Hole and Casters Sockets, Matte Black by mastery mart
- **How much does it cost?** ₱32672 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/291011840-mastery-mart-heavy-duty-office-chair-base-replacement-2500-lbs)

## 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

- • **Effortless DIY Upgrade:** Comes with clear step-by-step instructions and tools for a quick, no-fuss replacement that saves you 80% vs. buying new.
- • **Universal Compatibility:** Seamlessly fits most office, gaming, and executive chairs with standard 7/16" x 7/8" caster stems and 2" gas cylinders.
- • **Scratch-Resistant & Safe:** Low center of gravity design prevents tipping and protects your floors, keeping your workspace pristine and secure.
- • **Sleek Matte Black Finish:** Modern, polished look that elevates your office aesthetic while blending perfectly with contemporary decor.
- • **Unmatched Strength & Stability:** Engineered metal base supports a massive 2500 lbs, ensuring rock-solid durability for any office setup.

## Overview

The MASTERY MART Heavy Duty Office Chair Base Replacement is a robust, matte black metal base designed to support up to 2500 lbs. With a universal 28" diameter, it fits most office and gaming chairs, featuring easy installation and enhanced stability to prevent tipping and floor damage. This budget-friendly replacement extends your chair’s life with premium materials and a modern finish, making it the smart choice for professionals seeking durability and style.

## Description

Buy MASTERY MART Heavy Duty Office Chair Base Replacement, 2500 Lbs, 28"(70 cm), Metal Desk Chair Base Replacement Parts with Universal Gas Cylinder Hole and Casters Sockets, Matte Black: Casters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Worth the purchase! - Great and sturdy product! I bought one of those wide "cross cross chairs" often advertised on social media. For some reason they had sent the wheel-less version even though I chose the option with wheels. After about two years of constantly having to pick up and scoot the chair on carpet I was tired of it. I had some big roller blade type wheels and nowhere to put them, so I bought this to replace the base of the chair and it works great. Easy to put together and holds up. It also lifted my chair a little higher so it's even more comfortable to sit in, and it's made of metal so no flimsy plastic.
Review: It's a great chair base replacement! - I have an office chair that I really like but recently a couple of the plastic caster inserts in the base had cracked. I really didn't want to buy a new chair and so when I found this replacement on desertcart, I was hopeful that this would fix it. I'm here to tell you I am extremely happy with this base. The structural portion is all steel, even the holes where the casters insert. Yes, you do have to attach the legs to the hub and secure with the included screws. The backside of the head of the screws are ribbed to act like a lock washer but I went ahead and applied some blue thread locker to the screws before inserting them. Make sure you tighten the screws several times as you're putting the legs on. Go around and fully tighten them one last time before thinking you're done. The screws should not move when fully tightened. I now have my chair working like new at a fraction of the cost of buying a whole new chair. I will add one final note and that is you might have a hard time removing the old base from the cylinder. There are many YouTube videos. I finally had to take a hack saw to my old base to get it to let go of the cylinder.

## Features

- 🥇【Universal Size】This gaming chair base replacement is compatible with most chairs on the market, such as Herman Miller office chairs, gaming chairs, desk chairs, and executive chairs. Fits casters with 7/16" x 7/8" (11 mm x 22 mm) stems and gas cylinders with a 2" (5 cm) diameter.
- 🥇【Durable and Sturdy Materials】This heavy-duty base is made of chrome-plated metal with a matte finish. The solid tubular iron structure is reinforced with screws, providing enhanced load-bearing capacity and safety. It can support up to 2500 lbs.
- 🥇【Ensure Safety and Prevent Scratches】An improper chair height can lead to an unstable center of gravity and floor damage. Our replacement base features a low center of gravity and enhanced stability, making your chair safer and preventing scratches—saving you the cost of buying a new chair.
- 🥇【Budget-Friendly Solution】Why replace the whole chair when you can fix it for 1/5 the cost? If your chair seat is still in good condition, replacing the base is a smart way to save money and keep your favorite chair.
- 🥇【100% Satisfaction Guaranteed】Our replacement base is easy to install with clear, step-by-step instructions. If this doesn't fit your chair, you can simply return it.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07ZY36NJ1 |
| Additional Features | 11mm x 22mm, Durable, Easy to Replace and Install, Heave Duty, Quality Guaranteed |
| Age Range Description | Adult |
| Arm Style | Armless |
| Assembly Instructions Description | Included, Easy to follow |
| Back Style | Solid Back |
| Best Sellers Rank | #17,773 in Office Products ( See Top 100 in Office Products ) #25 in Office Furniture Casters |
| Brand | MASTERY MART |
| Brand Name | MASTERY MART |
| Color | Matte Black |
| Customer Reviews | 4.5 out of 5 stars 1,703 Reviews |
| Fill Material | Metal |
| Finish Types | Polished |
| Form Factor | Metal |
| Frame Material Type | Metal |
| Furniture Base Movement | Swivel |
| Furniture Finish | Black,Matte |
| Included Components | Base Only |
| Indoor Outdoor Usage | Indoor |
| Item Depth | 32 centimeters |
| Item Dimensions | 27.56 x 27.56 x 3.94 inches |
| Item Dimensions D x W x H | 28"D x 28"W x 4"H |
| Item Weight | 5 pounds |
| Leg Style | Tapered Leg |
| Manufacturer | Mastery Mart Co., Limited |
| Manufacturer Part Number | Mastery Mart |
| Material | Metal |
| Material Type | Metal |
| Maximum Weight Recommendation | 2200 pounds |
| Model Number | Mastery Mart |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pattern | Solid |
| Product Care Instructions | Wipe Clean |
| Product Dimensions | 28"D x 28"W x 4"H |
| Reclining Position Count | 1 |
| Recommended Uses For Product | Office |
| Room Type | Office |
| Seat Height | 28 inches |
| Seat Material | Metal |
| Shape | Round |
| Size | 28D x 28W x 4H in |
| Style Name | Contemporary |
| Surface Recommendation | Hard Floor |
| Theme | Contemporary |
| Unit Count | 1 Count |

## Product Details

- **Brand:** MASTERY MART
- **Color:** Matte Black
- **Material:** Metal
- **Product Dimensions:** 28"D x 28"W x 4"H
- **Size:** 28D x 28W x 4H in

## Images

![MASTERY MART Heavy Duty Office Chair Base Replacement, 2500 Lbs, 28"(70 cm), Metal Desk Chair Base Replacement Parts with Universal Gas Cylinder Hole and Casters Sockets, Matte Black - Image 1](https://m.media-amazon.com/images/I/51WVM0Ag+GL.jpg)

## Available Options

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

## Questions & Answers

**Q: How secure is the base of the office chair? Does it have a locking mechanism and sturdy back support?**
A: The office chair base is designed with safety in mind. It features a reliable locking mechanism to keep the base stable and secure, along with sturdy base support to prevent accidental tilting or damage, ensuring your safety during use.

**Q: What materials are used in the construction of the office chair base? Is it sturdy and durable?**
A: The office chair base is made from high-quality materials to ensure it is sturdy up to max capacitu of 2500 LBs and durable, avoiding any cheap feel. Every component undergoes strict quality control, providing reliable support that lasts long-term.

**Q: Is the office chair base easy to assemble? Does it come with an installation guide and tools?**
A: Yes, the office chair base is designed for easy assembly. It comes with a clear installation guide and all necessary tools, making it simple to replace your existing base—even if you have no prior experience.

**Q: How stable is the office chair base? Can it adapt to different floor surfaces?**
A: The office chair base is designed for excellent stability, minimizing the risk of tipping. Whether on tile, hardwood, or carpet, it adapts well to various floor types, providing steady support in any environment.

**Q: Is the office chair base easy to clean and maintain? Does it require special tools?**
A: Yes, the office chair base is designed for easy cleaning and maintenance. Its simple design means no special tools or complicated steps are needed, allowing you to keep the base in great condition with minimal effort.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worth the purchase!
*by J***N on February 22, 2026*

Great and sturdy product! I bought one of those wide "cross cross chairs" often advertised on social media. For some reason they had sent the wheel-less version even though I chose the option with wheels. After about two years of constantly having to pick up and scoot the chair on carpet I was tired of it. I had some big roller blade type wheels and nowhere to put them, so I bought this to replace the base of the chair and it works great. Easy to put together and holds up. It also lifted my chair a little higher so it's even more comfortable to sit in, and it's made of metal so no flimsy plastic.

### ⭐⭐⭐⭐⭐ It's a great chair base replacement!
*by I***Y on August 26, 2026*

I have an office chair that I really like but recently a couple of the plastic caster inserts in the base had cracked. I really didn't want to buy a new chair and so when I found this replacement on Amazon, I was hopeful that this would fix it. I'm here to tell you I am extremely happy with this base. The structural portion is all steel, even the holes where the casters insert. Yes, you do have to attach the legs to the hub and secure with the included screws. The backside of the head of the screws are ribbed to act like a lock washer but I went ahead and applied some blue thread locker to the screws before inserting them. Make sure you tighten the screws several times as you're putting the legs on. Go around and fully tighten them one last time before thinking you're done. The screws should not move when fully tightened. I now have my chair working like new at a fraction of the cost of buying a whole new chair. I will add one final note and that is you might have a hard time removing the old base from the cylinder. There are many YouTube videos. I finally had to take a hack saw to my old base to get it to let go of the cylinder.

### ⭐⭐⭐⭐⭐ Excellent Replacement Office Chair Base!!!
*by J***. on February 10, 2026*

After receiving little assistance from my chair manufacturer’s support team, I decided to purchase this office chair base replacement, and I’m very glad I did. The product has an excellent appearance, finished in a polished jet black, and feels extremely sturdy. Assembly was quick and straightforward. I simply transferred the wheels from my old base, seated the chair into the center cylinder, and was back to using it in under 15 minutes. An added benefit is that the footprint is slightly smaller, by a couple of inches, than the original base, so my feet no longer bump into it while sitting. Overall, this replacement appears to be of higher quality than the original, and I expect it will last even longer.

## Frequently Bought Together

- MASTERY MART Heavy Duty Office Chair Base Replacement, 2500 Lbs, 28"(70 cm), Metal Desk Chair Base Replacement Parts with Universal Gas Cylinder Hole and Casters Sockets, Matte Black
- Office Chair Caster Wheels Set of 5 Heavy Duty & Safe for All Floors Including Hardwood 2" Rubber Replace Office Chair Mat, Universal Standard Stem Size Fits 99%-Grey
- 9 Inches to 13 Inches Office Chair Cylinder Replacement, 4'' Stroke, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4 (Polished Steel)

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-09-19*