Mastery Mart 28" Office Chair Base Replacement with Reinforced Metal Legs (2200Lbs), Chair Bottom Part for Most Chairs, Universal Gas Cylinder and Caster Sockets (Matte Black)
Mastery Mart 28" Office Chair Base Replacement with Reinforced Metal Legs (2200Lbs), Chair Bottom Part for Most Chairs, Universal Gas Cylinder and Caster Sockets (Matte Black)
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Mastery Mart

Mastery Mart 28" Office Chair Base Replacement with Reinforced Metal Legs (2200Lbs), Chair Bottom Part for Most Chairs, Universal Gas Cylinder and Caster Sockets (Matte Black)

4.8 stars out of 29 reviews
(4.8)|
29 ratings
Mastery Mart 28" Office Chair Base Replacement with Reinforced Metal Legs (2200Lbs), Chair Bottom Part for Most Chairs, Universal Gas Cylinder and Caster Sockets (Matte Black)Mastery Mart Office Chair Base Replacement Desk Chair Cap Universal Gas Cylinder Caster Sockets 28 70 cm Heavy Duty 2200 Lbs 1000 Kg Matte BlackOffice Chair Base Bundle Heavy Duty 352LBs Quiet Glides Floors Swivel Chair Part Casters Gas Cylinder 4 7 Travel Length Matte Black MASTERY MART

Key item features

  • 🛠️ All-In-One Replacement Kit: Mastery Mart offers a complete Office Chair Base Replacement Kit, including a Cap for Desk Chairs. This kit comes with all necessary components for a hassle-free upgrade, ensuring you don't need to purchase additional parts.
  • 💪 Robust Heavy-Duty Construction: Our 28-inch (70 cm) base supports up to 2200 lbs (1000 Kg), crafted from reinforced premium-grade metal. This strong foundation promises years of stability and durability, suitable for intensive use.
  • 📏 Precision Engineered Dimensions: The base measures 28 inches in diameter, with chrome base legs each extending 12.6 inches and a height of 4 inches. It features a standard 2" gas cylinder socket and caster sockets of 7/16" x 7/8" (11mm x 22mm), crafted to meet diverse seating requirements.
  • 🔗 Universal Fit for Most Chairs: Designed for universal compatibility, our replacement base fits nearly all types of office chairs, including gaming, desk, task, and swivel chairs. It accommodates standard gas cylinders and casters, ensuring a seamless fit and easy installation.
  • 💯 Satisfaction Guaranteed: We ensure an easy installation process with our clear instruction sheet. If our product doesn't fit your chair, simply return it for a full refund. Your satisfaction is paramount at Mastery Mart. Whether for  adults, or seniors, this replacement base ensures enhanced stability and comfort for users of all ages, making it ideal for both home and office use.
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4.8 out of 5 stars
stars29 ratings17 reviews
How item rating is calculated
  1. 5 stars90% (26)
  2. 4 stars7% (2)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star3% (1)

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Showing 1-3 of 17 reviews

Dec 15, 2025
Tasha
Item details
Configuration: Base Replacement
Base color: Matte Black
Sold byMastery MartDelivered byWalmart
5 out of 5 stars review

Verified Purchase

This product should be the base to all office chairs. It sturdy and reliable. Highly recommend if you work in an office chair daily.

Incentivized Review
Helpful?2A571WK8CLJU1518798225
Oct 12, 2025
Momofeightinga
Item details
Configuration: Base Replacement
Base color: Matte Black
Sold byMastery MartDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Sturdy replacement base

It was sturdier than expected and very easy to assemble.

Incentivized Review
Helpful?2A571WK8CLJU1518798225
Jan 7, 2026
Verenice
Item details
Configuration: Base Replacement
Base color: Matte Black
Sold byMastery MartDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Great replacement for a swivel chair

Incentivized Review
Helpful?2A571WK8CLJU1518798225