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
【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.
