--- product_id: 156558348 title: "MASTERY MART 28 Inch Office Chair Base Replacement, 2500 lbs Capacity, Heavy-Duty Metal Base for Swivel Gaming Chair, Universal Caster Hole, Matte Black" brand: "mastery mart" price: "684 zł" currency: PLN in_stock: true reviews_count: 13 url: https://www.desertcart.pl/products/156558348-mastery-mart-28-inch-office-chair-base-replacement-2500-lbs store_origin: PL region: Poland --- # Universal Fit Heavy Duty (2500 lbs) Easy Installation MASTERY MART 28 Inch Office Chair Base Replacement, 2500 lbs Capacity, Heavy-Duty Metal Base for Swivel Gaming Chair, Universal Caster Hole, Matte Black **Brand:** mastery mart **Price:** 684 zł **Availability:** ✅ In Stock ## Summary > 🪑 Upgrade Your Comfort, Elevate Your Game! ## Quick Answers - **What is this?** MASTERY MART 28 Inch Office Chair Base Replacement, 2500 lbs Capacity, Heavy-Duty Metal Base for Swivel Gaming Chair, Universal Caster Hole, Matte Black by mastery mart - **How much does it cost?** 684 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/156558348-mastery-mart-28-inch-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 - • **Sleek Matte Finish:** Elevate your workspace aesthetic with a modern matte black design. - • **Unmatched Durability:** Engineered to support up to 2500 lbs, ensuring your chair stands the test of time. - • **Effortless Installation:** Comes with a straightforward instruction sheet for a hassle-free setup. - • **Satisfaction Guaranteed:** Enjoy peace of mind with our full refund policy if it doesn't fit your chair. - • **Universal Compatibility:** Fits seamlessly with nearly all office and gaming chairs, making upgrades a breeze. ## Overview The Mastery Mart Office Chair Base Replacement is a robust 28-inch metal leg designed to support up to 2500 lbs. This universal base fits most office and gaming chairs, ensuring durability and style with its sleek matte black finish. Installation is simple, backed by a satisfaction guarantee for a worry-free upgrade. ## Description MASTERY MART 28 Inch Office Chair Base Replacement, 2500 lbs Capacity, Heavy-Duty Metal Base for Swivel Gaming Chair, Universal Caster Hole, Matte Black ## Features - ➤ WHAT'S IN THE BOX: 1 Set of Office Chair Black Base Replacement, Installation Package, 1 Base Cap. - ➤ PREMIUM GRADE METAL MADE STRONG BASE REPLACEMENT: This Heavy Duty Chrome Base Stool is manufactured to meet the Office Chair's highest industry standard. The reinforced metal and durability of the base will ensure your chair's base is firmly sound for many years. - ➤ UNIVERSAL SIZE: The office chair base works perfectly with almost every office chair, gaming chair, desk chair, task chair and swivel chair on the market. The office chair base replacement has universal sockets that will fit your original casters and gas lift cylinder. - ➤ SIZE DETAIL: Office Chair Base Size in Diameter: 28’’ (70 cm). Chrome Base Leg Length: 12.6’’ (32 cm). Standard Gas Cylinder Socket: 2’’ (5 cm). Standard Caster Sockets: 7/16’’ x 7/8’’ (11mm x 22mm). Height of the Chrome Base: 4’’ (10 cm) - ➤ 100% SATISFACTION GUARANTEED - Very easy installation and replacement with our simple and clear instruction sheet. If this doesn't fit your chair, you can simply return it for a full refund. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Mastery Mart Co., Limited | | Brand | MASTERY MART | | Item Weight | 4.4 pounds | | Product Dimensions | 27.56 x 27.56 x 4.33 inches | | Country of Origin | China | | Exterior | matte | | Manufacturer Part Number | MM-REP-BAS001 | | Special Features | Durability | | Safety Rating | BIFMA | ## Images ![MASTERY MART 28 Inch Office Chair Base Replacement, 2500 lbs Capacity, Heavy-Duty Metal Base for Swivel Gaming Chair, Universal Caster Hole, Matte Black - Image 1](https://m.media-amazon.com/images/I/61oFU1R5mBL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Give Your Chair a New Life! 🚀 *by R***N on Reviewed in the United States on September 23, 2024* I never thought I'd be so excited about a chair base, but here we are. I got the MASTERY MART Office Chair Base Replacement and honestly, it’s been a game-changer for my beat-up old chair. If your chair has ever wobbled like it’s on a ship in stormy seas, this is the rescue mission you need.First things first: 28 inches of solid, heavy-duty metal 💪. This bad boy can handle up to 2500 lbs! I mean, I don’t plan on inviting the entire office to sit on my chair, but it’s nice to know it could handle it if I did. Seriously, the sturdiness is next-level.Installation? Easy-peasy. I’m no DIY expert, but this took me less than 10 minutes, and it fit perfectly with my existing chair. Now, my chair feels as solid as a rock—no more squeaks, no more tilt drama when I lean back to "think deeply" (aka scroll through social media).And let’s talk about the wheels... Oh wait, we can't because this base doesn’t come with wheels. But hey, slap your old ones on, or upgrade those too if you’re feeling fancy.Bottom line: If your office chair is on life support, this base is the cure. It's like turning a worn-out jalopy into a Ferrari (okay, maybe not a Ferrari, but you get the point). Plus, for the price, it’s a total steal. 🏆Test it out—you might even forget you're sitting! 😉 ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Nice office chair base *by T***R on Reviewed in the United States on June 3, 2024* I could used this base on all of the office chairs I have owned over years. Well made and with minimal assembly. Well made and easy to use, But do not forget to put the cover that goes on the base first. It should be noted that this base will your chair a bit over 2 inches. ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Heavy Duty *by A***R on Reviewed in the United States on August 16, 2024* Bought this cause I am over weight at 330 pounds...works great and holds up well to rolling around. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/156558348-mastery-mart-28-inch-office-chair-base-replacement-2500-lbs](https://www.desertcart.pl/products/156558348-mastery-mart-28-inch-office-chair-base-replacement-2500-lbs) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-26*