--- product_id: 324815595 title: "MASTERY MART Office Chair Base Replacement, 28 Inch Heavy Duty(2500 Lbs) Metal Leg, Reinforced to Repair Swivel Gaming Chair Bottom Part with Universal Caster and Gas Cylinder Size (Matte Black)" brand: "mastery mart" price: "€ 135.41" currency: EUR in_stock: true url: https://www.desertcart.pt/products/324815595-mastery-mart-office-chair-base-replacement-28-inch-heavy-duty store_origin: PT region: Portugal --- # Universal fit for most chairs 28-inch heavy-duty metal base Supports up to 2500 lbs MASTERY MART Office Chair Base Replacement, 28 Inch Heavy Duty(2500 Lbs) Metal Leg, Reinforced to Repair Swivel Gaming Chair Bottom Part with Universal Caster and Gas Cylinder Size (Matte Black) **Brand:** mastery mart **Price:** € 135.41 **Availability:** βœ… In Stock ## Summary > πŸͺ‘ Upgrade your throne with power and precision! ## Quick Answers - **What is this?** MASTERY MART Office Chair Base Replacement, 28 Inch Heavy Duty(2500 Lbs) Metal Leg, Reinforced to Repair Swivel Gaming Chair Bottom Part with Universal Caster and Gas Cylinder Size (Matte Black) by mastery mart - **How much does it cost?** € 135.41 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/324815595-mastery-mart-office-chair-base-replacement-28-inch-heavy-duty) ## 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 - β€’ **Built to Endure:** Reinforced heavy-duty metal base engineered to support an impressive 2500 lbs, ensuring unmatched durability and stability. - β€’ **Effortless Upgrade:** Simple installation with included hardware and clear instructionsβ€”transform your chair base in minutes without hassle. - β€’ **Confidence Guaranteed:** Backed by a 100% satisfaction promiseβ€”if it’s not perfect, return it hassle-free and upgrade your seating experience risk-free. - β€’ **Precision Engineering:** 28-inch diameter with standard caster and gas cylinder sockets guarantees a secure, wobble-free foundation. - β€’ **Seamless Compatibility:** Universal design fits nearly every office, gaming, and swivel chair on the marketβ€”no guesswork, just perfect fit. ## Overview The MASTERY MART Office Chair Base Replacement is a robust, 28-inch diameter matte black metal base designed to support up to 2500 lbs. Engineered for universal compatibility, it fits most office and gaming chairs worldwide. Featuring reinforced construction and standard caster and gas cylinder sockets, it offers a durable, stable foundation with easy installation and a satisfaction guarantee. ## Description Description: This Chrome Base will fit most office chairs available worldwide. Major office furniture manufacturers have been usingstandard size parts for many years now. This Chrome Base fits and even beyonds that standard. Easy installation: Simply remove the casters and gas lift from the chair base and put them in the new chrome base. You can rest assured knowing you are getting a premium quality product that is designed with the user in mind. Features: Fits Most of Office Chairs sold Worldwide Chrome Base Size in Diameter: 28’’ (70 cm). Chrome Base Leg Length: 12.6’’ (32 cm). Standard Cylinder Socket: 2’’ (5 cm). Standard Caster Sockets: 7/16’’ x 7/8’’ (11mm x 22mm). Height of the Chrome Base: 3.75’’ (9.5 cm) Meets the Highest Industry Standards Specifications: Model# : MF-PT003 Color: Black Net weight: 4.95lbs/ 2.25kgs 100% SATISFACTION GUARANTEED. If you don't absolutely enjoy it, we guarantee you a 100% reimbursement.Click the "Add to Cart" Button at the top of this page now for a better seating experience! ## Features - ➀ WHAT'S IN THE BOX: 1 Set of Office Chair Black Base Replacement, Installation Package, 1 Base Cap. - ➀ 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. - ➀ 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. - ➀ 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) - ➀ 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 | |---------------|-------| | Brand | MASTERY MART | | Model Number | MM-REP-BAS001 | | Color | Matte Black | | Diameter | 70 Centimeters | | Maximum Weight Capacity | 1000 Kilograms | | Material | Metal | | Special Features | heavy_duty | | Item Weight | 2 Kilograms | ## Images ![MASTERY MART Office Chair Base Replacement, 28 Inch Heavy Duty(2500 Lbs) Metal Leg, Reinforced to Repair Swivel Gaming Chair Bottom Part with Universal Caster and Gas Cylinder Size (Matte Black) - Image 1](https://m.media-amazon.com/images/I/61oFU1R5mBL.jpg) ![MASTERY MART Office Chair Base Replacement, 28 Inch Heavy Duty(2500 Lbs) Metal Leg, Reinforced to Repair Swivel Gaming Chair Bottom Part with Universal Caster and Gas Cylinder Size (Matte Black) - Image 2](https://m.media-amazon.com/images/I/61Jk4KL7ZqL.jpg) ![MASTERY MART Office Chair Base Replacement, 28 Inch Heavy Duty(2500 Lbs) Metal Leg, Reinforced to Repair Swivel Gaming Chair Bottom Part with Universal Caster and Gas Cylinder Size (Matte Black) - Image 3](https://m.media-amazon.com/images/I/61QhZhfbMpL.jpg) ![MASTERY MART Office Chair Base Replacement, 28 Inch Heavy Duty(2500 Lbs) Metal Leg, Reinforced to Repair Swivel Gaming Chair Bottom Part with Universal Caster and Gas Cylinder Size (Matte Black) - Image 4](https://m.media-amazon.com/images/I/61TdzKjBSeL.jpg) ![MASTERY MART Office Chair Base Replacement, 28 Inch Heavy Duty(2500 Lbs) Metal Leg, Reinforced to Repair Swivel Gaming Chair Bottom Part with Universal Caster and Gas Cylinder Size (Matte Black) - Image 5](https://m.media-amazon.com/images/I/71vDgXDGzKL.jpg) ## Available Options This product comes in different **Color** options. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/324815595-mastery-mart-office-chair-base-replacement-28-inch-heavy-duty](https://www.desertcart.pt/products/324815595-mastery-mart-office-chair-base-replacement-28-inch-heavy-duty) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-22*