MASTERY MART Office Chair Base Replacement Bundle – Heavy Duty 352 lbs, Smooth Rolling on All Floors, Swivel Base with Caster Wheels & Gas Lift Cylinder, 4.7'' Travel Length

About this item

• 【What's in the Box】Includes everything you need: 1× reinforced chair base for cross-legged sitting, 1× universal gas lift cylinder (4.7" stroke), and 5× smooth, quiet caster wheels for all floor types.
• 【Universal Size & Safe for All Floors】Featuring 75 mm caster wheels that glide effortlessly on vinyl, tile, hardwood, and most carpets (excluding thick or high-pile varieties). Designed to protect your floors from scratches and damage.
• 【4.7" Adjustable Stroke Length】The gas cylinder provides seat height adjustment from 10.7" to 15.27", making it compatible with most office chairs. Perfect for customizing your seating height for better ergonomics.
• 【Extremely Durable Structure & Materials】Built with a reinforced metal base and high-quality casters, this set supports up to 2500 lbs, ensuring long-lasting durability, stability, and safety in any workspace.
• 【Easy Installation & Smooth Mobility】Install the complete kit in just 15–20 minutes with simple tools. Enjoy smooth, silent movement thanks to the upgraded casters—perfect for improving your chair’s mobility without damaging your floor.